20829930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 38889750

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 47, 51, 55, 66, 79, 85, 94, 102, 110, 141, 158, 165, 170, 187, 235, 237, 255, 282, 330, 374, 395, 470, 474, 510, 517, 561, 705, 790, 799, 869, 935, 1034, 1122, 1185, 1343, 1410, 1551, 1598, 1738, 1870, 2370, 2397, 2585, 2607, 2686, 2805, 3102, 3713, 3995, 4029, 4345, 4794, 5170, 5214, 5610, 6715, 7426, 7755, 7990, 8058, 8690, 8789, 11139, 11985, 13035, 13430, 14773, 15510, 17578, 18565, 20145, 22278, 23970, 26070, 26367, 29546, 37130, 40290, 40843, 43945, 44319, 52734, 55695, 63121, 73865, 81686, 87890, 88638, 111390, 122529, 126242, 131835, 147730, 189363, 204215, 221595, 245058, 263670, 315605, 378726, 408430, 443190, 612645, 631210, 694331, 946815, 1225290, 1388662, 1893630, 2082993, 3471655, 4165986, 6943310, 10414965, 20829930]

約数ペア:

[(1, 20829930), (2, 10414965), (3, 6943310), (5, 4165986), (6, 3471655), (10, 2082993), (11, 1893630), (15, 1388662), (17, 1225290), (22, 946815), (30, 694331), (33, 631210), (34, 612645), (47, 443190), (51, 408430), (55, 378726), (66, 315605), (79, 263670), (85, 245058), (94, 221595), (102, 204215), (110, 189363), (141, 147730), (158, 131835), (165, 126242), (170, 122529), (187, 111390), (235, 88638), (237, 87890), (255, 81686), (282, 73865), (330, 63121), (374, 55695), (395, 52734), (470, 44319), (474, 43945), (510, 40843), (517, 40290), (561, 37130), (705, 29546), (790, 26367), (799, 26070), (869, 23970), (935, 22278), (1034, 20145), (1122, 18565), (1185, 17578), (1343, 15510), (1410, 14773), (1551, 13430), (1598, 13035), (1738, 11985), (1870, 11139), (2370, 8789), (2397, 8690), (2585, 8058), (2607, 7990), (2686, 7755), (2805, 7426), (3102, 6715), (3713, 5610), (3995, 5214), (4029, 5170), (4345, 4794)]