20180930900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1297}}^1\times {\mathrm{11969}}^1$

素因数の和:13293

約数の個数: 72

約数和(自身を含む): 47201588280

約数和(自身を除く): 27020657380

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1297, 1300, 2594, 5188, 6485, 11969, 12970, 16861, 23938, 25940, 32425, 33722, 47876, 59845, 64850, 67444, 84305, 119690, 129700, 155597, 168610, 239380, 299225, 311194, 337220, 421525, 598450, 622388, 777985, 843050, 1196900, 1555970, 1686100, 3111940, 3889925, 7779850, 15523793, 15559700, 31047586, 62095172, 77618965, 155237930, 201809309, 310475860, 388094825, 403618618, 776189650, 807237236, 1009046545, 1552379300, 2018093090, 4036186180, 5045232725, 10090465450, 20180930900]

約数ペア:

[(1, 20180930900), (2, 10090465450), (4, 5045232725), (5, 4036186180), (10, 2018093090), (13, 1552379300), (20, 1009046545), (25, 807237236), (26, 776189650), (50, 403618618), (52, 388094825), (65, 310475860), (100, 201809309), (130, 155237930), (260, 77618965), (325, 62095172), (650, 31047586), (1297, 15559700), (1300, 15523793), (2594, 7779850), (5188, 3889925), (6485, 3111940), (11969, 1686100), (12970, 1555970), (16861, 1196900), (23938, 843050), (25940, 777985), (32425, 622388), (33722, 598450), (47876, 421525), (59845, 337220), (64850, 311194), (67444, 299225), (84305, 239380), (119690, 168610), (129700, 155597)]