77640800

素因数分解:

$2^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 202455792

約数和(自身を除く): 124814992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 43, 50, 61, 74, 80, 86, 100, 122, 148, 160, 172, 185, 200, 215, 244, 296, 305, 344, 370, 400, 430, 488, 592, 610, 688, 740, 800, 860, 925, 976, 1075, 1184, 1220, 1376, 1480, 1525, 1591, 1720, 1850, 1952, 2150, 2257, 2440, 2623, 2960, 3050, 3182, 3440, 3700, 4300, 4514, 4880, 5246, 5920, 6100, 6364, 6880, 7400, 7955, 8600, 9028, 9760, 10492, 11285, 12200, 12728, 13115, 14800, 15910, 17200, 18056, 20984, 22570, 24400, 25456, 26230, 29600, 31820, 34400, 36112, 39775, 41968, 45140, 48800, 50912, 52460, 56425, 63640, 65575, 72224, 79550, 83936, 90280, 97051, 104920, 112850, 127280, 131150, 159100, 180560, 194102, 209840, 225700, 254560, 262300, 318200, 361120, 388204, 419680, 451400, 485255, 524600, 636400, 776408, 902800, 970510, 1049200, 1272800, 1552816, 1805600, 1941020, 2098400, 2426275, 3105632, 3882040, 4852550, 7764080, 9705100, 15528160, 19410200, 38820400, 77640800]

約数ペア:

[(1, 77640800), (2, 38820400), (4, 19410200), (5, 15528160), (8, 9705100), (10, 7764080), (16, 4852550), (20, 3882040), (25, 3105632), (32, 2426275), (37, 2098400), (40, 1941020), (43, 1805600), (50, 1552816), (61, 1272800), (74, 1049200), (80, 970510), (86, 902800), (100, 776408), (122, 636400), (148, 524600), (160, 485255), (172, 451400), (185, 419680), (200, 388204), (215, 361120), (244, 318200), (296, 262300), (305, 254560), (344, 225700), (370, 209840), (400, 194102), (430, 180560), (488, 159100), (592, 131150), (610, 127280), (688, 112850), (740, 104920), (800, 97051), (860, 90280), (925, 83936), (976, 79550), (1075, 72224), (1184, 65575), (1220, 63640), (1376, 56425), (1480, 52460), (1525, 50912), (1591, 48800), (1720, 45140), (1850, 41968), (1952, 39775), (2150, 36112), (2257, 34400), (2440, 31820), (2623, 29600), (2960, 26230), (3050, 25456), (3182, 24400), (3440, 22570), (3700, 20984), (4300, 18056), (4514, 17200), (4880, 15910), (5246, 14800), (5920, 13115), (6100, 12728), (6364, 12200), (6880, 11285), (7400, 10492), (7955, 9760), (8600, 9028)]