88878220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{277}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 191112768

約数和(自身を除く): 102234548

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 263, 277, 305, 526, 554, 610, 1052, 1108, 1220, 1315, 1385, 2630, 2770, 5260, 5540, 16043, 16897, 32086, 33794, 64172, 67588, 72851, 80215, 84485, 145702, 160430, 168970, 291404, 320860, 337940, 364255, 728510, 1457020, 4443911, 8887822, 17775644, 22219555, 44439110, 88878220]

約数ペア:

[(1, 88878220), (2, 44439110), (4, 22219555), (5, 17775644), (10, 8887822), (20, 4443911), (61, 1457020), (122, 728510), (244, 364255), (263, 337940), (277, 320860), (305, 291404), (526, 168970), (554, 160430), (610, 145702), (1052, 84485), (1108, 80215), (1220, 72851), (1315, 67588), (1385, 64172), (2630, 33794), (2770, 32086), (5260, 16897), (5540, 16043)]