80225980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3461}}^1$

素因数の和:3550

約数の個数: 48

約数和(自身を含む): 180300960

約数和(自身を除く): 100074980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 1159, 1220, 2318, 3461, 4636, 5795, 6922, 11590, 13844, 17305, 23180, 34610, 65759, 69220, 131518, 211121, 263036, 328795, 422242, 657590, 844484, 1055605, 1315180, 2111210, 4011299, 4222420, 8022598, 16045196, 20056495, 40112990, 80225980]

約数ペア:

[(1, 80225980), (2, 40112990), (4, 20056495), (5, 16045196), (10, 8022598), (19, 4222420), (20, 4011299), (38, 2111210), (61, 1315180), (76, 1055605), (95, 844484), (122, 657590), (190, 422242), (244, 328795), (305, 263036), (380, 211121), (610, 131518), (1159, 69220), (1220, 65759), (2318, 34610), (3461, 23180), (4636, 17305), (5795, 13844), (6922, 11590)]