20507102

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 40711680

約数和(自身を除く): 20204578

約数列:

[1, 2, 7, 11, 14, 22, 37, 59, 61, 74, 77, 118, 122, 154, 259, 407, 413, 427, 518, 649, 671, 814, 826, 854, 1298, 1342, 2183, 2257, 2849, 3599, 4366, 4514, 4543, 4697, 5698, 7198, 9086, 9394, 15281, 15799, 24013, 24827, 25193, 30562, 31598, 39589, 48026, 49654, 50386, 79178, 133163, 168091, 173789, 266326, 277123, 336182, 347578, 554246, 932141, 1464793, 1864282, 2929586, 10253551, 20507102]

約数ペア:

[(1, 20507102), (2, 10253551), (7, 2929586), (11, 1864282), (14, 1464793), (22, 932141), (37, 554246), (59, 347578), (61, 336182), (74, 277123), (77, 266326), (118, 173789), (122, 168091), (154, 133163), (259, 79178), (407, 50386), (413, 49654), (427, 48026), (518, 39589), (649, 31598), (671, 30562), (814, 25193), (826, 24827), (854, 24013), (1298, 15799), (1342, 15281), (2183, 9394), (2257, 9086), (2849, 7198), (3599, 5698), (4366, 4697), (4514, 4543)]