640928400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1861}}^1$

素因数の和:1930

約数の個数: 240

約数和(自身を含む): 2404929408

約数和(自身を除く): 1764001008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 41, 42, 48, 50, 56, 60, 70, 75, 80, 82, 84, 100, 105, 112, 120, 123, 140, 150, 164, 168, 175, 200, 205, 210, 240, 246, 280, 287, 300, 328, 336, 350, 400, 410, 420, 492, 525, 560, 574, 600, 615, 656, 700, 820, 840, 861, 984, 1025, 1050, 1148, 1200, 1230, 1400, 1435, 1640, 1680, 1722, 1861, 1968, 2050, 2100, 2296, 2460, 2800, 2870, 3075, 3280, 3444, 3722, 4100, 4200, 4305, 4592, 4920, 5583, 5740, 6150, 6888, 7175, 7444, 8200, 8400, 8610, 9305, 9840, 11166, 11480, 12300, 13027, 13776, 14350, 14888, 16400, 17220, 18610, 21525, 22332, 22960, 24600, 26054, 27915, 28700, 29776, 34440, 37220, 39081, 43050, 44664, 46525, 49200, 52108, 55830, 57400, 65135, 68880, 74440, 76301, 78162, 86100, 89328, 93050, 104216, 111660, 114800, 130270, 139575, 148880, 152602, 156324, 172200, 186100, 195405, 208432, 223320, 228903, 260540, 279150, 305204, 312648, 325675, 344400, 372200, 381505, 390810, 446640, 457806, 521080, 534107, 558300, 610408, 625296, 651350, 744400, 763010, 781620, 915612, 977025, 1042160, 1068214, 1116600, 1144515, 1220816, 1302700, 1526020, 1563240, 1602321, 1831224, 1907525, 1954050, 2136428, 2233200, 2289030, 2605400, 2670535, 3052040, 3126480, 3204642, 3662448, 3815050, 3908100, 4272856, 4578060, 5210800, 5341070, 5722575, 6104080, 6409284, 7630100, 7816200, 8011605, 8545712, 9156120, 10682140, 11445150, 12818568, 13352675, 15260200, 15632400, 16023210, 18312240, 21364280, 22890300, 25637136, 26705350, 30520400, 32046420, 40058025, 42728560, 45780600, 53410700, 64092840, 80116050, 91561200, 106821400, 128185680, 160232100, 213642800, 320464200, 640928400]

約数ペア:

[(1, 640928400), (2, 320464200), (3, 213642800), (4, 160232100), (5, 128185680), (6, 106821400), (7, 91561200), (8, 80116050), (10, 64092840), (12, 53410700), (14, 45780600), (15, 42728560), (16, 40058025), (20, 32046420), (21, 30520400), (24, 26705350), (25, 25637136), (28, 22890300), (30, 21364280), (35, 18312240), (40, 16023210), (41, 15632400), (42, 15260200), (48, 13352675), (50, 12818568), (56, 11445150), (60, 10682140), (70, 9156120), (75, 8545712), (80, 8011605), (82, 7816200), (84, 7630100), (100, 6409284), (105, 6104080), (112, 5722575), (120, 5341070), (123, 5210800), (140, 4578060), (150, 4272856), (164, 3908100), (168, 3815050), (175, 3662448), (200, 3204642), (205, 3126480), (210, 3052040), (240, 2670535), (246, 2605400), (280, 2289030), (287, 2233200), (300, 2136428), (328, 1954050), (336, 1907525), (350, 1831224), (400, 1602321), (410, 1563240), (420, 1526020), (492, 1302700), (525, 1220816), (560, 1144515), (574, 1116600), (600, 1068214), (615, 1042160), (656, 977025), (700, 915612), (820, 781620), (840, 763010), (861, 744400), (984, 651350), (1025, 625296), (1050, 610408), (1148, 558300), (1200, 534107), (1230, 521080), (1400, 457806), (1435, 446640), (1640, 390810), (1680, 381505), (1722, 372200), (1861, 344400), (1968, 325675), (2050, 312648), (2100, 305204), (2296, 279150), (2460, 260540), (2800, 228903), (2870, 223320), (3075, 208432), (3280, 195405), (3444, 186100), (3722, 172200), (4100, 156324), (4200, 152602), (4305, 148880), (4592, 139575), (4920, 130270), (5583, 114800), (5740, 111660), (6150, 104216), (6888, 93050), (7175, 89328), (7444, 86100), (8200, 78162), (8400, 76301), (8610, 74440), (9305, 68880), (9840, 65135), (11166, 57400), (11480, 55830), (12300, 52108), (13027, 49200), (13776, 46525), (14350, 44664), (14888, 43050), (16400, 39081), (17220, 37220), (18610, 34440), (21525, 29776), (22332, 28700), (22960, 27915), (24600, 26054)]