20888970490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:544

約数の個数: 128

約数和(自身を含む): 41773729536

約数和(自身を除く): 20884759046

約数列:

[1, 2, 5, 10, 17, 34, 37, 74, 85, 101, 131, 170, 185, 202, 251, 262, 370, 502, 505, 629, 655, 1010, 1255, 1258, 1310, 1717, 2227, 2510, 3145, 3434, 3737, 4267, 4454, 4847, 6290, 7474, 8534, 8585, 9287, 9694, 11135, 13231, 17170, 18574, 18685, 21335, 22270, 24235, 25351, 26462, 32881, 37370, 42670, 46435, 48470, 50702, 63529, 65762, 66155, 82399, 92870, 126755, 127058, 132310, 157879, 164405, 164798, 224927, 253510, 315758, 317645, 328810, 411995, 430967, 449854, 489547, 558977, 635290, 789395, 823990, 861934, 937987, 979094, 1117954, 1124635, 1216597, 1578790, 1875974, 2154835, 2249270, 2433194, 2447735, 2794885, 3320981, 4309670, 4689935, 4895470, 5589770, 6082985, 6641962, 8322299, 9379870, 12165970, 15945779, 16604905, 16644598, 20682149, 31891558, 33209810, 41364298, 41611495, 56456677, 79728895, 83222990, 103410745, 112913354, 122876297, 159457790, 206821490, 245752594, 282283385, 564566770, 614381485, 1228762970, 2088897049, 4177794098, 10444485245, 20888970490]

約数ペア:

[(1, 20888970490), (2, 10444485245), (5, 4177794098), (10, 2088897049), (17, 1228762970), (34, 614381485), (37, 564566770), (74, 282283385), (85, 245752594), (101, 206821490), (131, 159457790), (170, 122876297), (185, 112913354), (202, 103410745), (251, 83222990), (262, 79728895), (370, 56456677), (502, 41611495), (505, 41364298), (629, 33209810), (655, 31891558), (1010, 20682149), (1255, 16644598), (1258, 16604905), (1310, 15945779), (1717, 12165970), (2227, 9379870), (2510, 8322299), (3145, 6641962), (3434, 6082985), (3737, 5589770), (4267, 4895470), (4454, 4689935), (4847, 4309670), (6290, 3320981), (7474, 2794885), (8534, 2447735), (8585, 2433194), (9287, 2249270), (9694, 2154835), (11135, 1875974), (13231, 1578790), (17170, 1216597), (18574, 1124635), (18685, 1117954), (21335, 979094), (22270, 937987), (24235, 861934), (25351, 823990), (26462, 789395), (32881, 635290), (37370, 558977), (42670, 489547), (46435, 449854), (48470, 430967), (50702, 411995), (63529, 328810), (65762, 317645), (66155, 315758), (82399, 253510), (92870, 224927), (126755, 164798), (127058, 164405), (132310, 157879)]