72868640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:742

約数の個数: 96

約数和(自身を含む): 189178416

約数和(自身を除く): 116309776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 65, 80, 104, 106, 130, 160, 208, 212, 260, 265, 416, 424, 520, 530, 661, 689, 848, 1040, 1060, 1322, 1378, 1696, 2080, 2120, 2644, 2756, 3305, 3445, 4240, 5288, 5512, 6610, 6890, 8480, 8593, 10576, 11024, 13220, 13780, 17186, 21152, 22048, 26440, 27560, 34372, 35033, 42965, 52880, 55120, 68744, 70066, 85930, 105760, 110240, 137488, 140132, 171860, 175165, 274976, 280264, 343720, 350330, 455429, 560528, 687440, 700660, 910858, 1121056, 1374880, 1401320, 1821716, 2277145, 2802640, 3643432, 4554290, 5605280, 7286864, 9108580, 14573728, 18217160, 36434320, 72868640]

約数ペア:

[(1, 72868640), (2, 36434320), (4, 18217160), (5, 14573728), (8, 9108580), (10, 7286864), (13, 5605280), (16, 4554290), (20, 3643432), (26, 2802640), (32, 2277145), (40, 1821716), (52, 1401320), (53, 1374880), (65, 1121056), (80, 910858), (104, 700660), (106, 687440), (130, 560528), (160, 455429), (208, 350330), (212, 343720), (260, 280264), (265, 274976), (416, 175165), (424, 171860), (520, 140132), (530, 137488), (661, 110240), (689, 105760), (848, 85930), (1040, 70066), (1060, 68744), (1322, 55120), (1378, 52880), (1696, 42965), (2080, 35033), (2120, 34372), (2644, 27560), (2756, 26440), (3305, 22048), (3445, 21152), (4240, 17186), (5288, 13780), (5512, 13220), (6610, 11024), (6890, 10576), (8480, 8593)]