20644890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2657}}^1$

素因数の和:2711

約数の個数: 64

約数和(自身を含む): 58178304

約数和(自身を除く): 37533414

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 74, 105, 111, 185, 210, 222, 259, 370, 518, 555, 777, 1110, 1295, 1554, 2590, 2657, 3885, 5314, 7770, 7971, 13285, 15942, 18599, 26570, 37198, 39855, 55797, 79710, 92995, 98309, 111594, 185990, 196618, 278985, 294927, 491545, 557970, 589854, 688163, 983090, 1376326, 1474635, 2064489, 2949270, 3440815, 4128978, 6881630, 10322445, 20644890]

約数ペア:

[(1, 20644890), (2, 10322445), (3, 6881630), (5, 4128978), (6, 3440815), (7, 2949270), (10, 2064489), (14, 1474635), (15, 1376326), (21, 983090), (30, 688163), (35, 589854), (37, 557970), (42, 491545), (70, 294927), (74, 278985), (105, 196618), (111, 185990), (185, 111594), (210, 98309), (222, 92995), (259, 79710), (370, 55797), (518, 39855), (555, 37198), (777, 26570), (1110, 18599), (1295, 15942), (1554, 13285), (2590, 7971), (2657, 7770), (3885, 5314)]