689910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 64

約数和(自身を含む): 1874880

約数和(自身を除く): 1184970

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 39, 58, 61, 65, 78, 87, 122, 130, 145, 174, 183, 195, 290, 305, 366, 377, 390, 435, 610, 754, 793, 870, 915, 1131, 1586, 1769, 1830, 1885, 2262, 2379, 3538, 3770, 3965, 4758, 5307, 5655, 7930, 8845, 10614, 11310, 11895, 17690, 22997, 23790, 26535, 45994, 53070, 68991, 114985, 137982, 229970, 344955, 689910]

約数ペア:

[(1, 689910), (2, 344955), (3, 229970), (5, 137982), (6, 114985), (10, 68991), (13, 53070), (15, 45994), (26, 26535), (29, 23790), (30, 22997), (39, 17690), (58, 11895), (61, 11310), (65, 10614), (78, 8845), (87, 7930), (122, 5655), (130, 5307), (145, 4758), (174, 3965), (183, 3770), (195, 3538), (290, 2379), (305, 2262), (366, 1885), (377, 1830), (390, 1769), (435, 1586), (610, 1131), (754, 915), (793, 870)]