28641940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1381}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 64777104

約数和(自身を除く): 36135164

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 1037, 1220, 1381, 2074, 2762, 4148, 5185, 5524, 6905, 10370, 13810, 20740, 23477, 27620, 46954, 84241, 93908, 117385, 168482, 234770, 336964, 421205, 469540, 842410, 1432097, 1684820, 2864194, 5728388, 7160485, 14320970, 28641940]

約数ペア:

[(1, 28641940), (2, 14320970), (4, 7160485), (5, 5728388), (10, 2864194), (17, 1684820), (20, 1432097), (34, 842410), (61, 469540), (68, 421205), (85, 336964), (122, 234770), (170, 168482), (244, 117385), (305, 93908), (340, 84241), (610, 46954), (1037, 27620), (1220, 23477), (1381, 20740), (2074, 13810), (2762, 10370), (4148, 6905), (5185, 5524)]