20428320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 72503424

約数和(自身を除く): 52075104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 53, 55, 60, 66, 73, 80, 88, 96, 106, 110, 120, 132, 146, 159, 160, 165, 176, 212, 219, 220, 240, 264, 265, 292, 318, 330, 352, 365, 424, 438, 440, 480, 528, 530, 583, 584, 636, 660, 730, 795, 803, 848, 876, 880, 1056, 1060, 1095, 1166, 1168, 1272, 1320, 1460, 1590, 1606, 1696, 1749, 1752, 1760, 2120, 2190, 2332, 2336, 2409, 2544, 2640, 2915, 2920, 3180, 3212, 3498, 3504, 3869, 4015, 4240, 4380, 4664, 4818, 5088, 5280, 5830, 5840, 6360, 6424, 6996, 7008, 7738, 8030, 8480, 8745, 8760, 9328, 9636, 11607, 11660, 11680, 12045, 12720, 12848, 13992, 15476, 16060, 17490, 17520, 18656, 19272, 19345, 23214, 23320, 24090, 25440, 25696, 27984, 30952, 32120, 34980, 35040, 38544, 38690, 42559, 46428, 46640, 48180, 55968, 58035, 61904, 64240, 69960, 77088, 77380, 85118, 92856, 93280, 96360, 116070, 123808, 127677, 128480, 139920, 154760, 170236, 185712, 192720, 212795, 232140, 255354, 279840, 309520, 340472, 371424, 385440, 425590, 464280, 510708, 619040, 638385, 680944, 851180, 928560, 1021416, 1276770, 1361888, 1702360, 1857120, 2042832, 2553540, 3404720, 4085664, 5107080, 6809440, 10214160, 20428320]

約数ペア:

[(1, 20428320), (2, 10214160), (3, 6809440), (4, 5107080), (5, 4085664), (6, 3404720), (8, 2553540), (10, 2042832), (11, 1857120), (12, 1702360), (15, 1361888), (16, 1276770), (20, 1021416), (22, 928560), (24, 851180), (30, 680944), (32, 638385), (33, 619040), (40, 510708), (44, 464280), (48, 425590), (53, 385440), (55, 371424), (60, 340472), (66, 309520), (73, 279840), (80, 255354), (88, 232140), (96, 212795), (106, 192720), (110, 185712), (120, 170236), (132, 154760), (146, 139920), (159, 128480), (160, 127677), (165, 123808), (176, 116070), (212, 96360), (219, 93280), (220, 92856), (240, 85118), (264, 77380), (265, 77088), (292, 69960), (318, 64240), (330, 61904), (352, 58035), (365, 55968), (424, 48180), (438, 46640), (440, 46428), (480, 42559), (528, 38690), (530, 38544), (583, 35040), (584, 34980), (636, 32120), (660, 30952), (730, 27984), (795, 25696), (803, 25440), (848, 24090), (876, 23320), (880, 23214), (1056, 19345), (1060, 19272), (1095, 18656), (1166, 17520), (1168, 17490), (1272, 16060), (1320, 15476), (1460, 13992), (1590, 12848), (1606, 12720), (1696, 12045), (1749, 11680), (1752, 11660), (1760, 11607), (2120, 9636), (2190, 9328), (2332, 8760), (2336, 8745), (2409, 8480), (2544, 8030), (2640, 7738), (2915, 7008), (2920, 6996), (3180, 6424), (3212, 6360), (3498, 5840), (3504, 5830), (3869, 5280), (4015, 5088), (4240, 4818), (4380, 4664)]