20449080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1381

約数の個数: 96

約数和(自身を含む): 68056560

約数和(自身を除く): 47607480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1290, 1321, 1548, 1720, 1935, 2580, 2642, 3096, 3870, 3963, 5160, 5284, 6605, 7740, 7926, 10568, 11889, 13210, 15480, 15852, 19815, 23778, 26420, 31704, 39630, 47556, 52840, 56803, 59445, 79260, 95112, 113606, 118890, 158520, 170409, 227212, 237780, 284015, 340818, 454424, 475560, 511227, 568030, 681636, 852045, 1022454, 1136060, 1363272, 1704090, 2044908, 2272120, 2556135, 3408180, 4089816, 5112270, 6816360, 10224540, 20449080]

約数ペア:

[(1, 20449080), (2, 10224540), (3, 6816360), (4, 5112270), (5, 4089816), (6, 3408180), (8, 2556135), (9, 2272120), (10, 2044908), (12, 1704090), (15, 1363272), (18, 1136060), (20, 1022454), (24, 852045), (30, 681636), (36, 568030), (40, 511227), (43, 475560), (45, 454424), (60, 340818), (72, 284015), (86, 237780), (90, 227212), (120, 170409), (129, 158520), (172, 118890), (180, 113606), (215, 95112), (258, 79260), (344, 59445), (360, 56803), (387, 52840), (430, 47556), (516, 39630), (645, 31704), (774, 26420), (860, 23778), (1032, 19815), (1290, 15852), (1321, 15480), (1548, 13210), (1720, 11889), (1935, 10568), (2580, 7926), (2642, 7740), (3096, 6605), (3870, 5284), (3963, 5160)]