68971860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 220605840

約数和(自身を除く): 151633980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 73, 87, 90, 116, 145, 146, 174, 180, 181, 219, 261, 290, 292, 348, 362, 365, 435, 438, 522, 543, 580, 657, 724, 730, 870, 876, 905, 1044, 1086, 1095, 1305, 1314, 1460, 1629, 1740, 1810, 2117, 2172, 2190, 2610, 2628, 2715, 3258, 3285, 3620, 4234, 4380, 5220, 5249, 5430, 6351, 6516, 6570, 8145, 8468, 10498, 10585, 10860, 12702, 13140, 13213, 15747, 16290, 19053, 20996, 21170, 25404, 26245, 26426, 31494, 31755, 32580, 38106, 39639, 42340, 47241, 52490, 52852, 62988, 63510, 66065, 76212, 78735, 79278, 94482, 95265, 104980, 118917, 127020, 132130, 157470, 158556, 188964, 190530, 198195, 236205, 237834, 264260, 314940, 381060, 383177, 396390, 472410, 475668, 594585, 766354, 792780, 944820, 1149531, 1189170, 1532708, 1915885, 2299062, 2378340, 3448593, 3831770, 4598124, 5747655, 6897186, 7663540, 11495310, 13794372, 17242965, 22990620, 34485930, 68971860]

約数ペア:

[(1, 68971860), (2, 34485930), (3, 22990620), (4, 17242965), (5, 13794372), (6, 11495310), (9, 7663540), (10, 6897186), (12, 5747655), (15, 4598124), (18, 3831770), (20, 3448593), (29, 2378340), (30, 2299062), (36, 1915885), (45, 1532708), (58, 1189170), (60, 1149531), (73, 944820), (87, 792780), (90, 766354), (116, 594585), (145, 475668), (146, 472410), (174, 396390), (180, 383177), (181, 381060), (219, 314940), (261, 264260), (290, 237834), (292, 236205), (348, 198195), (362, 190530), (365, 188964), (435, 158556), (438, 157470), (522, 132130), (543, 127020), (580, 118917), (657, 104980), (724, 95265), (730, 94482), (870, 79278), (876, 78735), (905, 76212), (1044, 66065), (1086, 63510), (1095, 62988), (1305, 52852), (1314, 52490), (1460, 47241), (1629, 42340), (1740, 39639), (1810, 38106), (2117, 32580), (2172, 31755), (2190, 31494), (2610, 26426), (2628, 26245), (2715, 25404), (3258, 21170), (3285, 20996), (3620, 19053), (4234, 16290), (4380, 15747), (5220, 13213), (5249, 13140), (5430, 12702), (6351, 10860), (6516, 10585), (6570, 10498), (8145, 8468)]