20031120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:709

約数の個数: 120

約数和(自身を含む): 68942016

約数和(自身を除く): 48910896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 647, 688, 720, 774, 860, 1032, 1290, 1294, 1548, 1720, 1935, 1941, 2064, 2580, 2588, 3096, 3235, 3440, 3870, 3882, 5160, 5176, 5823, 6192, 6470, 7740, 7764, 9705, 10320, 10352, 11646, 12940, 15480, 15528, 19410, 23292, 25880, 27821, 29115, 30960, 31056, 38820, 46584, 51760, 55642, 58230, 77640, 83463, 93168, 111284, 116460, 139105, 155280, 166926, 222568, 232920, 250389, 278210, 333852, 417315, 445136, 465840, 500778, 556420, 667704, 834630, 1001556, 1112840, 1251945, 1335408, 1669260, 2003112, 2225680, 2503890, 3338520, 4006224, 5007780, 6677040, 10015560, 20031120]

約数ペア:

[(1, 20031120), (2, 10015560), (3, 6677040), (4, 5007780), (5, 4006224), (6, 3338520), (8, 2503890), (9, 2225680), (10, 2003112), (12, 1669260), (15, 1335408), (16, 1251945), (18, 1112840), (20, 1001556), (24, 834630), (30, 667704), (36, 556420), (40, 500778), (43, 465840), (45, 445136), (48, 417315), (60, 333852), (72, 278210), (80, 250389), (86, 232920), (90, 222568), (120, 166926), (129, 155280), (144, 139105), (172, 116460), (180, 111284), (215, 93168), (240, 83463), (258, 77640), (344, 58230), (360, 55642), (387, 51760), (430, 46584), (516, 38820), (645, 31056), (647, 30960), (688, 29115), (720, 27821), (774, 25880), (860, 23292), (1032, 19410), (1290, 15528), (1294, 15480), (1548, 12940), (1720, 11646), (1935, 10352), (1941, 10320), (2064, 9705), (2580, 7764), (2588, 7740), (3096, 6470), (3235, 6192), (3440, 5823), (3870, 5176), (3882, 5160)]