2171920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1597}}^1$

素因数の和:1627

約数の個数: 40

約数和(自身を含む): 5350104

約数和(自身を除く): 3178184

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1597, 3194, 6388, 7985, 12776, 15970, 25552, 27149, 31940, 54298, 63880, 108596, 127760, 135745, 217192, 271490, 434384, 542980, 1085960, 2171920]

約数ペア:

[(1, 2171920), (2, 1085960), (4, 542980), (5, 434384), (8, 271490), (10, 217192), (16, 135745), (17, 127760), (20, 108596), (34, 63880), (40, 54298), (68, 31940), (80, 27149), (85, 25552), (136, 15970), (170, 12776), (272, 7985), (340, 6388), (680, 3194), (1360, 1597)]