64812800

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:99

約数の個数: 216

約数和(自身を含む): 186290160

約数和(自身を除く): 121477360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 41, 50, 52, 64, 65, 76, 80, 82, 95, 100, 104, 128, 130, 152, 160, 164, 190, 200, 205, 208, 247, 256, 260, 304, 320, 325, 328, 380, 400, 410, 416, 475, 494, 520, 533, 608, 640, 650, 656, 760, 779, 800, 820, 832, 950, 988, 1025, 1040, 1066, 1216, 1235, 1280, 1300, 1312, 1520, 1558, 1600, 1640, 1664, 1900, 1976, 2050, 2080, 2132, 2432, 2470, 2600, 2624, 2665, 3040, 3116, 3200, 3280, 3328, 3800, 3895, 3952, 4100, 4160, 4264, 4864, 4940, 5200, 5248, 5330, 6080, 6175, 6232, 6400, 6560, 7600, 7790, 7904, 8200, 8320, 8528, 9880, 10127, 10400, 10496, 10660, 12160, 12350, 12464, 13120, 13325, 15200, 15580, 15808, 16400, 16640, 17056, 19475, 19760, 20254, 20800, 21320, 24320, 24700, 24928, 26240, 26650, 30400, 31160, 31616, 32800, 34112, 38950, 39520, 40508, 41600, 42640, 49400, 49856, 50635, 52480, 53300, 60800, 62320, 63232, 65600, 68224, 77900, 79040, 81016, 83200, 85280, 98800, 99712, 101270, 106600, 121600, 124640, 131200, 136448, 155800, 158080, 162032, 170560, 197600, 199424, 202540, 213200, 249280, 253175, 262400, 311600, 316160, 324064, 341120, 395200, 405080, 426400, 498560, 506350, 623200, 648128, 682240, 790400, 810160, 852800, 997120, 1012700, 1246400, 1296256, 1580800, 1620320, 1705600, 2025400, 2492800, 2592512, 3240640, 3411200, 4050800, 4985600, 6481280, 8101600, 12962560, 16203200, 32406400, 64812800]

約数ペア:

[(1, 64812800), (2, 32406400), (4, 16203200), (5, 12962560), (8, 8101600), (10, 6481280), (13, 4985600), (16, 4050800), (19, 3411200), (20, 3240640), (25, 2592512), (26, 2492800), (32, 2025400), (38, 1705600), (40, 1620320), (41, 1580800), (50, 1296256), (52, 1246400), (64, 1012700), (65, 997120), (76, 852800), (80, 810160), (82, 790400), (95, 682240), (100, 648128), (104, 623200), (128, 506350), (130, 498560), (152, 426400), (160, 405080), (164, 395200), (190, 341120), (200, 324064), (205, 316160), (208, 311600), (247, 262400), (256, 253175), (260, 249280), (304, 213200), (320, 202540), (325, 199424), (328, 197600), (380, 170560), (400, 162032), (410, 158080), (416, 155800), (475, 136448), (494, 131200), (520, 124640), (533, 121600), (608, 106600), (640, 101270), (650, 99712), (656, 98800), (760, 85280), (779, 83200), (800, 81016), (820, 79040), (832, 77900), (950, 68224), (988, 65600), (1025, 63232), (1040, 62320), (1066, 60800), (1216, 53300), (1235, 52480), (1280, 50635), (1300, 49856), (1312, 49400), (1520, 42640), (1558, 41600), (1600, 40508), (1640, 39520), (1664, 38950), (1900, 34112), (1976, 32800), (2050, 31616), (2080, 31160), (2132, 30400), (2432, 26650), (2470, 26240), (2600, 24928), (2624, 24700), (2665, 24320), (3040, 21320), (3116, 20800), (3200, 20254), (3280, 19760), (3328, 19475), (3800, 17056), (3895, 16640), (3952, 16400), (4100, 15808), (4160, 15580), (4264, 15200), (4864, 13325), (4940, 13120), (5200, 12464), (5248, 12350), (5330, 12160), (6080, 10660), (6175, 10496), (6232, 10400), (6400, 10127), (6560, 9880), (7600, 8528), (7790, 8320), (7904, 8200)]