2001231320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{110933}}^1$

素因数の和:110996

約数の個数: 64

約数和(自身を含む): 5031966240

約数和(自身を除く): 3030734920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1804, 2255, 3608, 4510, 9020, 18040, 110933, 221866, 443732, 554665, 887464, 1109330, 1220263, 2218660, 2440526, 4437320, 4548253, 4881052, 6101315, 9096506, 9762104, 12202630, 18193012, 22741265, 24405260, 36386024, 45482530, 48810520, 50030783, 90965060, 100061566, 181930120, 200123132, 250153915, 400246264, 500307830, 1000615660, 2001231320]

約数ペア:

[(1, 2001231320), (2, 1000615660), (4, 500307830), (5, 400246264), (8, 250153915), (10, 200123132), (11, 181930120), (20, 100061566), (22, 90965060), (40, 50030783), (41, 48810520), (44, 45482530), (55, 36386024), (82, 24405260), (88, 22741265), (110, 18193012), (164, 12202630), (205, 9762104), (220, 9096506), (328, 6101315), (410, 4881052), (440, 4548253), (451, 4437320), (820, 2440526), (902, 2218660), (1640, 1220263), (1804, 1109330), (2255, 887464), (3608, 554665), (4510, 443732), (9020, 221866), (18040, 110933)]