72473980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{709}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 161028000

約数和(自身を除く): 88554020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 269, 380, 538, 709, 1076, 1345, 1418, 2690, 2836, 3545, 5111, 5380, 7090, 10222, 13471, 14180, 20444, 25555, 26942, 51110, 53884, 67355, 102220, 134710, 190721, 269420, 381442, 762884, 953605, 1907210, 3623699, 3814420, 7247398, 14494796, 18118495, 36236990, 72473980]

約数ペア:

[(1, 72473980), (2, 36236990), (4, 18118495), (5, 14494796), (10, 7247398), (19, 3814420), (20, 3623699), (38, 1907210), (76, 953605), (95, 762884), (190, 381442), (269, 269420), (380, 190721), (538, 134710), (709, 102220), (1076, 67355), (1345, 53884), (1418, 51110), (2690, 26942), (2836, 25555), (3545, 20444), (5111, 14180), (5380, 13471), (7090, 10222)]