20009640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:152

約数の個数: 192

約数和(自身を含む): 72394560

約数和(自身を除く): 52384920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 49, 56, 60, 70, 82, 83, 84, 98, 105, 120, 123, 140, 147, 164, 166, 168, 196, 205, 210, 245, 246, 249, 280, 287, 294, 328, 332, 392, 410, 415, 420, 490, 492, 498, 574, 581, 588, 615, 664, 735, 820, 830, 840, 861, 980, 984, 996, 1148, 1162, 1176, 1230, 1245, 1435, 1470, 1640, 1660, 1722, 1743, 1960, 1992, 2009, 2296, 2324, 2460, 2490, 2870, 2905, 2940, 3320, 3403, 3444, 3486, 4018, 4067, 4305, 4648, 4920, 4980, 5740, 5810, 5880, 6027, 6806, 6888, 6972, 8036, 8134, 8610, 8715, 9960, 10045, 10209, 11480, 11620, 12054, 12201, 13612, 13944, 16072, 16268, 17015, 17220, 17430, 20090, 20335, 20418, 23240, 23821, 24108, 24402, 27224, 30135, 32536, 34030, 34440, 34860, 40180, 40670, 40836, 47642, 48216, 48804, 51045, 60270, 61005, 68060, 69720, 71463, 80360, 81340, 81672, 95284, 97608, 102090, 119105, 120540, 122010, 136120, 142926, 162680, 166747, 190568, 204180, 238210, 241080, 244020, 285852, 333494, 357315, 408360, 476420, 488040, 500241, 571704, 666988, 714630, 833735, 952840, 1000482, 1333976, 1429260, 1667470, 2000964, 2501205, 2858520, 3334940, 4001928, 5002410, 6669880, 10004820, 20009640]

約数ペア:

[(1, 20009640), (2, 10004820), (3, 6669880), (4, 5002410), (5, 4001928), (6, 3334940), (7, 2858520), (8, 2501205), (10, 2000964), (12, 1667470), (14, 1429260), (15, 1333976), (20, 1000482), (21, 952840), (24, 833735), (28, 714630), (30, 666988), (35, 571704), (40, 500241), (41, 488040), (42, 476420), (49, 408360), (56, 357315), (60, 333494), (70, 285852), (82, 244020), (83, 241080), (84, 238210), (98, 204180), (105, 190568), (120, 166747), (123, 162680), (140, 142926), (147, 136120), (164, 122010), (166, 120540), (168, 119105), (196, 102090), (205, 97608), (210, 95284), (245, 81672), (246, 81340), (249, 80360), (280, 71463), (287, 69720), (294, 68060), (328, 61005), (332, 60270), (392, 51045), (410, 48804), (415, 48216), (420, 47642), (490, 40836), (492, 40670), (498, 40180), (574, 34860), (581, 34440), (588, 34030), (615, 32536), (664, 30135), (735, 27224), (820, 24402), (830, 24108), (840, 23821), (861, 23240), (980, 20418), (984, 20335), (996, 20090), (1148, 17430), (1162, 17220), (1176, 17015), (1230, 16268), (1245, 16072), (1435, 13944), (1470, 13612), (1640, 12201), (1660, 12054), (1722, 11620), (1743, 11480), (1960, 10209), (1992, 10045), (2009, 9960), (2296, 8715), (2324, 8610), (2460, 8134), (2490, 8036), (2870, 6972), (2905, 6888), (2940, 6806), (3320, 6027), (3403, 5880), (3444, 5810), (3486, 5740), (4018, 4980), (4067, 4920), (4305, 4648)]