20809399000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{15541}}^1$

素因数の和:15678

約数の個数: 128

約数和(自身を含む): 52952215680

約数和(自身を除く): 32142816680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 103, 104, 125, 130, 200, 206, 250, 260, 325, 412, 500, 515, 520, 650, 824, 1000, 1030, 1300, 1339, 1625, 2060, 2575, 2600, 2678, 3250, 4120, 5150, 5356, 6500, 6695, 10300, 10712, 12875, 13000, 13390, 15541, 20600, 25750, 26780, 31082, 33475, 51500, 53560, 62164, 66950, 77705, 103000, 124328, 133900, 155410, 167375, 202033, 267800, 310820, 334750, 388525, 404066, 621640, 669500, 777050, 808132, 1010165, 1339000, 1554100, 1600723, 1616264, 1942625, 2020330, 3108200, 3201446, 3885250, 4040660, 5050825, 6402892, 7770500, 8003615, 8081320, 10101650, 12805784, 15541000, 16007230, 20203300, 20809399, 25254125, 32014460, 40018075, 40406600, 41618798, 50508250, 64028920, 80036150, 83237596, 101016500, 104046995, 160072300, 166475192, 200090375, 202033000, 208093990, 320144600, 400180750, 416187980, 520234975, 800361500, 832375960, 1040469950, 1600723000, 2080939900, 2601174875, 4161879800, 5202349750, 10404699500, 20809399000]

約数ペア:

[(1, 20809399000), (2, 10404699500), (4, 5202349750), (5, 4161879800), (8, 2601174875), (10, 2080939900), (13, 1600723000), (20, 1040469950), (25, 832375960), (26, 800361500), (40, 520234975), (50, 416187980), (52, 400180750), (65, 320144600), (100, 208093990), (103, 202033000), (104, 200090375), (125, 166475192), (130, 160072300), (200, 104046995), (206, 101016500), (250, 83237596), (260, 80036150), (325, 64028920), (412, 50508250), (500, 41618798), (515, 40406600), (520, 40018075), (650, 32014460), (824, 25254125), (1000, 20809399), (1030, 20203300), (1300, 16007230), (1339, 15541000), (1625, 12805784), (2060, 10101650), (2575, 8081320), (2600, 8003615), (2678, 7770500), (3250, 6402892), (4120, 5050825), (5150, 4040660), (5356, 3885250), (6500, 3201446), (6695, 3108200), (10300, 2020330), (10712, 1942625), (12875, 1616264), (13000, 1600723), (13390, 1554100), (15541, 1339000), (20600, 1010165), (25750, 808132), (26780, 777050), (31082, 669500), (33475, 621640), (51500, 404066), (53560, 388525), (62164, 334750), (66950, 310820), (77705, 267800), (103000, 202033), (124328, 167375), (133900, 155410)]