20694840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 65664000

約数和(自身を除く): 44969160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 59, 60, 74, 79, 111, 118, 120, 148, 158, 177, 185, 222, 236, 237, 295, 296, 316, 354, 370, 395, 444, 472, 474, 555, 590, 632, 708, 740, 790, 885, 888, 948, 1110, 1180, 1185, 1416, 1480, 1580, 1770, 1896, 2183, 2220, 2360, 2370, 2923, 3160, 3540, 4366, 4440, 4661, 4740, 5846, 6549, 7080, 8732, 8769, 9322, 9480, 10915, 11692, 13098, 13983, 14615, 17464, 17538, 18644, 21830, 23305, 23384, 26196, 27966, 29230, 32745, 35076, 37288, 43660, 43845, 46610, 52392, 55932, 58460, 65490, 69915, 70152, 87320, 87690, 93220, 111864, 116920, 130980, 139830, 172457, 175380, 186440, 261960, 279660, 344914, 350760, 517371, 559320, 689828, 862285, 1034742, 1379656, 1724570, 2069484, 2586855, 3449140, 4138968, 5173710, 6898280, 10347420, 20694840]

約数ペア:

[(1, 20694840), (2, 10347420), (3, 6898280), (4, 5173710), (5, 4138968), (6, 3449140), (8, 2586855), (10, 2069484), (12, 1724570), (15, 1379656), (20, 1034742), (24, 862285), (30, 689828), (37, 559320), (40, 517371), (59, 350760), (60, 344914), (74, 279660), (79, 261960), (111, 186440), (118, 175380), (120, 172457), (148, 139830), (158, 130980), (177, 116920), (185, 111864), (222, 93220), (236, 87690), (237, 87320), (295, 70152), (296, 69915), (316, 65490), (354, 58460), (370, 55932), (395, 52392), (444, 46610), (472, 43845), (474, 43660), (555, 37288), (590, 35076), (632, 32745), (708, 29230), (740, 27966), (790, 26196), (885, 23384), (888, 23305), (948, 21830), (1110, 18644), (1180, 17538), (1185, 17464), (1416, 14615), (1480, 13983), (1580, 13098), (1770, 11692), (1896, 10915), (2183, 9480), (2220, 9322), (2360, 8769), (2370, 8732), (2923, 7080), (3160, 6549), (3540, 5846), (4366, 4740), (4440, 4661)]