20678240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:436

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34479520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 379, 440, 496, 620, 682, 758, 880, 992, 1240, 1364, 1516, 1705, 1760, 1895, 2480, 2728, 3032, 3410, 3790, 4169, 4960, 5456, 6064, 6820, 7580, 8338, 10912, 11749, 12128, 13640, 15160, 16676, 20845, 23498, 27280, 30320, 33352, 41690, 46996, 54560, 58745, 60640, 66704, 83380, 93992, 117490, 129239, 133408, 166760, 187984, 234980, 258478, 333520, 375968, 469960, 516956, 646195, 667040, 939920, 1033912, 1292390, 1879840, 2067824, 2584780, 4135648, 5169560, 10339120, 20678240]

約数ペア:

[(1, 20678240), (2, 10339120), (4, 5169560), (5, 4135648), (8, 2584780), (10, 2067824), (11, 1879840), (16, 1292390), (20, 1033912), (22, 939920), (31, 667040), (32, 646195), (40, 516956), (44, 469960), (55, 375968), (62, 333520), (80, 258478), (88, 234980), (110, 187984), (124, 166760), (155, 133408), (160, 129239), (176, 117490), (220, 93992), (248, 83380), (310, 66704), (341, 60640), (352, 58745), (379, 54560), (440, 46996), (496, 41690), (620, 33352), (682, 30320), (758, 27280), (880, 23498), (992, 20845), (1240, 16676), (1364, 15160), (1516, 13640), (1705, 12128), (1760, 11749), (1895, 10912), (2480, 8338), (2728, 7580), (3032, 6820), (3410, 6064), (3790, 5456), (4169, 4960)]