20191287740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1\times {\mathrm{977}}^1$

素因数の和:1887

約数の個数: 96

約数和(自身を含む): 46221344064

約数和(自身を除く): 26030056324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 787, 977, 1010, 1313, 1574, 1954, 2020, 2626, 3148, 3908, 3935, 4885, 5252, 6565, 7870, 9770, 10231, 12701, 13130, 15740, 19540, 20462, 25402, 26260, 40924, 50804, 51155, 63505, 79487, 98677, 102310, 127010, 158974, 197354, 204620, 254020, 317948, 394708, 397435, 493385, 768899, 794870, 986770, 1033331, 1282801, 1537798, 1589740, 1973540, 2066662, 2565602, 3075596, 3844495, 4133324, 5131204, 5166655, 6414005, 7688990, 9995687, 10333310, 12828010, 15377980, 19991374, 20666620, 25656020, 39982748, 49978435, 77658799, 99956870, 155317598, 199913740, 310635196, 388293995, 776587990, 1009564387, 1553175980, 2019128774, 4038257548, 5047821935, 10095643870, 20191287740]

約数ペア:

[(1, 20191287740), (2, 10095643870), (4, 5047821935), (5, 4038257548), (10, 2019128774), (13, 1553175980), (20, 1009564387), (26, 776587990), (52, 388293995), (65, 310635196), (101, 199913740), (130, 155317598), (202, 99956870), (260, 77658799), (404, 49978435), (505, 39982748), (787, 25656020), (977, 20666620), (1010, 19991374), (1313, 15377980), (1574, 12828010), (1954, 10333310), (2020, 9995687), (2626, 7688990), (3148, 6414005), (3908, 5166655), (3935, 5131204), (4885, 4133324), (5252, 3844495), (6565, 3075596), (7870, 2565602), (9770, 2066662), (10231, 1973540), (12701, 1589740), (13130, 1537798), (15740, 1282801), (19540, 1033331), (20462, 986770), (25402, 794870), (26260, 768899), (40924, 493385), (50804, 397435), (51155, 394708), (63505, 317948), (79487, 254020), (98677, 204620), (102310, 197354), (127010, 158974)]