201011980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59471}}^1$

素因数の和:59506

約数の個数: 36

約数和(自身を含む): 457101792

約数和(自身を除く): 256089812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 59471, 118942, 237884, 297355, 594710, 773123, 1189420, 1546246, 3092492, 3865615, 7731230, 10050599, 15462460, 20101198, 40202396, 50252995, 100505990, 201011980]

約数ペア:

[(1, 201011980), (2, 100505990), (4, 50252995), (5, 40202396), (10, 20101198), (13, 15462460), (20, 10050599), (26, 7731230), (52, 3865615), (65, 3092492), (130, 1546246), (169, 1189420), (260, 773123), (338, 594710), (676, 297355), (845, 237884), (1690, 118942), (3380, 59471)]