81412500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 257233536

約数和(自身を除く): 175821036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 167, 195, 250, 260, 300, 325, 334, 375, 390, 500, 501, 625, 650, 668, 750, 780, 835, 975, 1002, 1250, 1300, 1500, 1625, 1670, 1875, 1950, 2004, 2171, 2500, 2505, 3125, 3250, 3340, 3750, 3900, 4175, 4342, 4875, 5010, 6250, 6500, 6513, 7500, 8125, 8350, 8684, 9375, 9750, 10020, 10855, 12500, 12525, 13026, 16250, 16700, 18750, 19500, 20875, 21710, 24375, 25050, 26052, 32500, 32565, 37500, 40625, 41750, 43420, 48750, 50100, 54275, 62625, 65130, 81250, 83500, 97500, 104375, 108550, 121875, 125250, 130260, 162500, 162825, 208750, 217100, 243750, 250500, 271375, 313125, 325650, 417500, 487500, 521875, 542750, 626250, 651300, 814125, 1043750, 1085500, 1252500, 1356875, 1565625, 1628250, 2087500, 2713750, 3131250, 3256500, 4070625, 5427500, 6262500, 6784375, 8141250, 13568750, 16282500, 20353125, 27137500, 40706250, 81412500]

約数ペア:

[(1, 81412500), (2, 40706250), (3, 27137500), (4, 20353125), (5, 16282500), (6, 13568750), (10, 8141250), (12, 6784375), (13, 6262500), (15, 5427500), (20, 4070625), (25, 3256500), (26, 3131250), (30, 2713750), (39, 2087500), (50, 1628250), (52, 1565625), (60, 1356875), (65, 1252500), (75, 1085500), (78, 1043750), (100, 814125), (125, 651300), (130, 626250), (150, 542750), (156, 521875), (167, 487500), (195, 417500), (250, 325650), (260, 313125), (300, 271375), (325, 250500), (334, 243750), (375, 217100), (390, 208750), (500, 162825), (501, 162500), (625, 130260), (650, 125250), (668, 121875), (750, 108550), (780, 104375), (835, 97500), (975, 83500), (1002, 81250), (1250, 65130), (1300, 62625), (1500, 54275), (1625, 50100), (1670, 48750), (1875, 43420), (1950, 41750), (2004, 40625), (2171, 37500), (2500, 32565), (2505, 32500), (3125, 26052), (3250, 25050), (3340, 24375), (3750, 21710), (3900, 20875), (4175, 19500), (4342, 18750), (4875, 16700), (5010, 16250), (6250, 13026), (6500, 12525), (6513, 12500), (7500, 10855), (8125, 10020), (8350, 9750), (8684, 9375)]