145352020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{10831}}^1$

素因数の和:10912

約数の個数: 48

約数和(自身を含む): 338478336

約数和(自身を除く): 193126316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 10831, 13420, 21662, 43324, 54155, 108310, 119141, 216620, 238282, 476564, 595705, 660691, 1191410, 1321382, 2382820, 2642764, 3303455, 6606910, 7267601, 13213820, 14535202, 29070404, 36338005, 72676010, 145352020]

約数ペア:

[(1, 145352020), (2, 72676010), (4, 36338005), (5, 29070404), (10, 14535202), (11, 13213820), (20, 7267601), (22, 6606910), (44, 3303455), (55, 2642764), (61, 2382820), (110, 1321382), (122, 1191410), (220, 660691), (244, 595705), (305, 476564), (610, 238282), (671, 216620), (1220, 119141), (1342, 108310), (2684, 54155), (3355, 43324), (6710, 21662), (10831, 13420)]