20940120

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:327

約数の個数: 160

約数和(自身を含む): 73703520

約数和(自身を除く): 52763400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 90, 92, 108, 115, 120, 135, 138, 162, 180, 184, 207, 216, 230, 270, 276, 281, 324, 345, 360, 405, 414, 460, 540, 552, 562, 621, 648, 690, 810, 828, 843, 920, 1035, 1080, 1124, 1242, 1380, 1405, 1620, 1656, 1686, 1863, 2070, 2248, 2484, 2529, 2760, 2810, 3105, 3240, 3372, 3726, 4140, 4215, 4968, 5058, 5620, 6210, 6463, 6744, 7452, 7587, 8280, 8430, 9315, 10116, 11240, 12420, 12645, 12926, 14904, 15174, 16860, 18630, 19389, 20232, 22761, 24840, 25290, 25852, 30348, 32315, 33720, 37260, 37935, 38778, 45522, 50580, 51704, 58167, 60696, 64630, 74520, 75870, 77556, 91044, 96945, 101160, 113805, 116334, 129260, 151740, 155112, 174501, 182088, 193890, 227610, 232668, 258520, 290835, 303480, 349002, 387780, 455220, 465336, 523503, 581670, 698004, 775560, 872505, 910440, 1047006, 1163340, 1396008, 1745010, 2094012, 2326680, 2617515, 3490020, 4188024, 5235030, 6980040, 10470060, 20940120]

約数ペア:

[(1, 20940120), (2, 10470060), (3, 6980040), (4, 5235030), (5, 4188024), (6, 3490020), (8, 2617515), (9, 2326680), (10, 2094012), (12, 1745010), (15, 1396008), (18, 1163340), (20, 1047006), (23, 910440), (24, 872505), (27, 775560), (30, 698004), (36, 581670), (40, 523503), (45, 465336), (46, 455220), (54, 387780), (60, 349002), (69, 303480), (72, 290835), (81, 258520), (90, 232668), (92, 227610), (108, 193890), (115, 182088), (120, 174501), (135, 155112), (138, 151740), (162, 129260), (180, 116334), (184, 113805), (207, 101160), (216, 96945), (230, 91044), (270, 77556), (276, 75870), (281, 74520), (324, 64630), (345, 60696), (360, 58167), (405, 51704), (414, 50580), (460, 45522), (540, 38778), (552, 37935), (562, 37260), (621, 33720), (648, 32315), (690, 30348), (810, 25852), (828, 25290), (843, 24840), (920, 22761), (1035, 20232), (1080, 19389), (1124, 18630), (1242, 16860), (1380, 15174), (1405, 14904), (1620, 12926), (1656, 12645), (1686, 12420), (1863, 11240), (2070, 10116), (2248, 9315), (2484, 8430), (2529, 8280), (2760, 7587), (2810, 7452), (3105, 6744), (3240, 6463), (3372, 6210), (3726, 5620), (4140, 5058), (4215, 4968)]