5540020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 12499200

約数和(自身を除く): 6959180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 239, 244, 305, 380, 478, 610, 956, 1159, 1195, 1220, 2318, 2390, 4541, 4636, 4780, 5795, 9082, 11590, 14579, 18164, 22705, 23180, 29158, 45410, 58316, 72895, 90820, 145790, 277001, 291580, 554002, 1108004, 1385005, 2770010, 5540020]

約数ペア:

[(1, 5540020), (2, 2770010), (4, 1385005), (5, 1108004), (10, 554002), (19, 291580), (20, 277001), (38, 145790), (61, 90820), (76, 72895), (95, 58316), (122, 45410), (190, 29158), (239, 23180), (244, 22705), (305, 18164), (380, 14579), (478, 11590), (610, 9082), (956, 5795), (1159, 4780), (1195, 4636), (1220, 4541), (2318, 2390)]