21529680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{823}}^1$

素因数の和:948

約数の個数: 80

約数和(自身を含む): 67436160

約数和(自身を除く): 45906480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 823, 872, 1090, 1308, 1635, 1646, 1744, 2180, 2469, 2616, 3270, 3292, 4115, 4360, 4938, 5232, 6540, 6584, 8230, 8720, 9876, 12345, 13080, 13168, 16460, 19752, 24690, 26160, 32920, 39504, 49380, 65840, 89707, 98760, 179414, 197520, 269121, 358828, 448535, 538242, 717656, 897070, 1076484, 1345605, 1435312, 1794140, 2152968, 2691210, 3588280, 4305936, 5382420, 7176560, 10764840, 21529680]

約数ペア:

[(1, 21529680), (2, 10764840), (3, 7176560), (4, 5382420), (5, 4305936), (6, 3588280), (8, 2691210), (10, 2152968), (12, 1794140), (15, 1435312), (16, 1345605), (20, 1076484), (24, 897070), (30, 717656), (40, 538242), (48, 448535), (60, 358828), (80, 269121), (109, 197520), (120, 179414), (218, 98760), (240, 89707), (327, 65840), (436, 49380), (545, 39504), (654, 32920), (823, 26160), (872, 24690), (1090, 19752), (1308, 16460), (1635, 13168), (1646, 13080), (1744, 12345), (2180, 9876), (2469, 8720), (2616, 8230), (3270, 6584), (3292, 6540), (4115, 5232), (4360, 4938)]