81431569260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{42403}}^1$

素因数の和:42692

約数の個数: 144

約数和(自身を含む): 253381879296

約数和(自身を除く): 171950310036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 227, 235, 282, 423, 454, 470, 564, 681, 705, 846, 908, 940, 1135, 1362, 1410, 1692, 2043, 2115, 2270, 2724, 2820, 3405, 4086, 4230, 4540, 6810, 8172, 8460, 10215, 10669, 13620, 20430, 21338, 32007, 40860, 42403, 42676, 53345, 64014, 84806, 96021, 106690, 127209, 128028, 160035, 169612, 192042, 212015, 213380, 254418, 320070, 381627, 384084, 424030, 480105, 508836, 636045, 640140, 763254, 848060, 960210, 1272090, 1526508, 1908135, 1920420, 1992941, 2544180, 3816270, 3985882, 5978823, 7632540, 7971764, 9625481, 9964705, 11957646, 17936469, 19250962, 19929410, 23915292, 28876443, 29894115, 35872938, 38501924, 39858820, 48127405, 57752886, 59788230, 71745876, 86629329, 89682345, 96254810, 115505772, 119576460, 144382215, 173258658, 179364690, 192509620, 288764430, 346517316, 358729380, 433146645, 452397607, 577528860, 866293290, 904795214, 1357192821, 1732586580, 1809590428, 2261988035, 2714385642, 4071578463, 4523976070, 5428771284, 6785964105, 8143156926, 9047952140, 13571928210, 16286313852, 20357892315, 27143856420, 40715784630, 81431569260]

約数ペア:

[(1, 81431569260), (2, 40715784630), (3, 27143856420), (4, 20357892315), (5, 16286313852), (6, 13571928210), (9, 9047952140), (10, 8143156926), (12, 6785964105), (15, 5428771284), (18, 4523976070), (20, 4071578463), (30, 2714385642), (36, 2261988035), (45, 1809590428), (47, 1732586580), (60, 1357192821), (90, 904795214), (94, 866293290), (141, 577528860), (180, 452397607), (188, 433146645), (227, 358729380), (235, 346517316), (282, 288764430), (423, 192509620), (454, 179364690), (470, 173258658), (564, 144382215), (681, 119576460), (705, 115505772), (846, 96254810), (908, 89682345), (940, 86629329), (1135, 71745876), (1362, 59788230), (1410, 57752886), (1692, 48127405), (2043, 39858820), (2115, 38501924), (2270, 35872938), (2724, 29894115), (2820, 28876443), (3405, 23915292), (4086, 19929410), (4230, 19250962), (4540, 17936469), (6810, 11957646), (8172, 9964705), (8460, 9625481), (10215, 7971764), (10669, 7632540), (13620, 5978823), (20430, 3985882), (21338, 3816270), (32007, 2544180), (40860, 1992941), (42403, 1920420), (42676, 1908135), (53345, 1526508), (64014, 1272090), (84806, 960210), (96021, 848060), (106690, 763254), (127209, 640140), (128028, 636045), (160035, 508836), (169612, 480105), (192042, 424030), (212015, 384084), (213380, 381627), (254418, 320070)]