20791860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 60867072

約数和(自身を除く): 40075212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 73, 94, 101, 141, 146, 188, 202, 219, 235, 282, 292, 303, 365, 404, 438, 470, 505, 564, 606, 705, 730, 876, 940, 1010, 1095, 1212, 1410, 1460, 1515, 2020, 2190, 2820, 3030, 3431, 4380, 4747, 6060, 6862, 7373, 9494, 10293, 13724, 14241, 14746, 17155, 18988, 20586, 22119, 23735, 28482, 29492, 34310, 36865, 41172, 44238, 47470, 51465, 56964, 68620, 71205, 73730, 88476, 94940, 102930, 110595, 142410, 147460, 205860, 221190, 284820, 346531, 442380, 693062, 1039593, 1386124, 1732655, 2079186, 3465310, 4158372, 5197965, 6930620, 10395930, 20791860]

約数ペア:

[(1, 20791860), (2, 10395930), (3, 6930620), (4, 5197965), (5, 4158372), (6, 3465310), (10, 2079186), (12, 1732655), (15, 1386124), (20, 1039593), (30, 693062), (47, 442380), (60, 346531), (73, 284820), (94, 221190), (101, 205860), (141, 147460), (146, 142410), (188, 110595), (202, 102930), (219, 94940), (235, 88476), (282, 73730), (292, 71205), (303, 68620), (365, 56964), (404, 51465), (438, 47470), (470, 44238), (505, 41172), (564, 36865), (606, 34310), (705, 29492), (730, 28482), (876, 23735), (940, 22119), (1010, 20586), (1095, 18988), (1212, 17155), (1410, 14746), (1460, 14241), (1515, 13724), (2020, 10293), (2190, 9494), (2820, 7373), (3030, 6862), (3431, 6060), (4380, 4747)]