20112720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{463}}^1$

素因数の和:660

約数の個数: 80

約数和(自身を含む): 62829312

約数和(自身を除く): 42716592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 181, 240, 362, 463, 543, 724, 905, 926, 1086, 1389, 1448, 1810, 1852, 2172, 2315, 2715, 2778, 2896, 3620, 3704, 4344, 4630, 5430, 5556, 6945, 7240, 7408, 8688, 9260, 10860, 11112, 13890, 14480, 18520, 21720, 22224, 27780, 37040, 43440, 55560, 83803, 111120, 167606, 251409, 335212, 419015, 502818, 670424, 838030, 1005636, 1257045, 1340848, 1676060, 2011272, 2514090, 3352120, 4022544, 5028180, 6704240, 10056360, 20112720]

約数ペア:

[(1, 20112720), (2, 10056360), (3, 6704240), (4, 5028180), (5, 4022544), (6, 3352120), (8, 2514090), (10, 2011272), (12, 1676060), (15, 1340848), (16, 1257045), (20, 1005636), (24, 838030), (30, 670424), (40, 502818), (48, 419015), (60, 335212), (80, 251409), (120, 167606), (181, 111120), (240, 83803), (362, 55560), (463, 43440), (543, 37040), (724, 27780), (905, 22224), (926, 21720), (1086, 18520), (1389, 14480), (1448, 13890), (1810, 11112), (1852, 10860), (2172, 9260), (2315, 8688), (2715, 7408), (2778, 7240), (2896, 6945), (3620, 5556), (3704, 5430), (4344, 4630)]