64125880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:333

約数の個数: 128

約数和(自身を含む): 180633600

約数和(自身を除く): 116507720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 79, 91, 104, 130, 140, 158, 182, 223, 260, 280, 316, 364, 395, 446, 455, 520, 553, 632, 728, 790, 892, 910, 1027, 1106, 1115, 1561, 1580, 1784, 1820, 2054, 2212, 2230, 2765, 2899, 3122, 3160, 3640, 4108, 4424, 4460, 5135, 5530, 5798, 6244, 7189, 7805, 8216, 8920, 10270, 11060, 11596, 12488, 14378, 14495, 15610, 17617, 20293, 20540, 22120, 23192, 28756, 28990, 31220, 35234, 35945, 40586, 41080, 57512, 57980, 62440, 70468, 71890, 81172, 88085, 101465, 115960, 123319, 140936, 143780, 162344, 176170, 202930, 229021, 246638, 287560, 352340, 405860, 458042, 493276, 616595, 704680, 811720, 916084, 986552, 1145105, 1233190, 1603147, 1832168, 2290210, 2466380, 3206294, 4580420, 4932760, 6412588, 8015735, 9160840, 12825176, 16031470, 32062940, 64125880]

約数ペア:

[(1, 64125880), (2, 32062940), (4, 16031470), (5, 12825176), (7, 9160840), (8, 8015735), (10, 6412588), (13, 4932760), (14, 4580420), (20, 3206294), (26, 2466380), (28, 2290210), (35, 1832168), (40, 1603147), (52, 1233190), (56, 1145105), (65, 986552), (70, 916084), (79, 811720), (91, 704680), (104, 616595), (130, 493276), (140, 458042), (158, 405860), (182, 352340), (223, 287560), (260, 246638), (280, 229021), (316, 202930), (364, 176170), (395, 162344), (446, 143780), (455, 140936), (520, 123319), (553, 115960), (632, 101465), (728, 88085), (790, 81172), (892, 71890), (910, 70468), (1027, 62440), (1106, 57980), (1115, 57512), (1561, 41080), (1580, 40586), (1784, 35945), (1820, 35234), (2054, 31220), (2212, 28990), (2230, 28756), (2765, 23192), (2899, 22120), (3122, 20540), (3160, 20293), (3640, 17617), (4108, 15610), (4424, 14495), (4460, 14378), (5135, 12488), (5530, 11596), (5798, 11060), (6244, 10270), (7189, 8920), (7805, 8216)]