291889520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 764951040

約数和(自身を除く): 473061520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 67, 71, 80, 104, 118, 130, 134, 142, 208, 236, 260, 268, 284, 295, 335, 355, 472, 520, 536, 568, 590, 670, 710, 767, 871, 923, 944, 1040, 1072, 1136, 1180, 1340, 1420, 1534, 1742, 1846, 2360, 2680, 2840, 3068, 3484, 3692, 3835, 3953, 4189, 4355, 4615, 4720, 4757, 5360, 5680, 6136, 6968, 7384, 7670, 7906, 8378, 8710, 9230, 9514, 12272, 13936, 14768, 15340, 15812, 16756, 17420, 18460, 19028, 19765, 20945, 23785, 30680, 31624, 33512, 34840, 36920, 38056, 39530, 41890, 47570, 51389, 54457, 61360, 61841, 63248, 67024, 69680, 73840, 76112, 79060, 83780, 95140, 102778, 108914, 123682, 158120, 167560, 190280, 205556, 217828, 247364, 256945, 272285, 280663, 309205, 316240, 335120, 380560, 411112, 435656, 494728, 513890, 544570, 561326, 618410, 822224, 871312, 989456, 1027780, 1089140, 1122652, 1236820, 1403315, 2055560, 2178280, 2245304, 2473640, 2806630, 3648619, 4111120, 4356560, 4490608, 4947280, 5613260, 7297238, 11226520, 14594476, 18243095, 22453040, 29188952, 36486190, 58377904, 72972380, 145944760, 291889520]

約数ペア:

[(1, 291889520), (2, 145944760), (4, 72972380), (5, 58377904), (8, 36486190), (10, 29188952), (13, 22453040), (16, 18243095), (20, 14594476), (26, 11226520), (40, 7297238), (52, 5613260), (59, 4947280), (65, 4490608), (67, 4356560), (71, 4111120), (80, 3648619), (104, 2806630), (118, 2473640), (130, 2245304), (134, 2178280), (142, 2055560), (208, 1403315), (236, 1236820), (260, 1122652), (268, 1089140), (284, 1027780), (295, 989456), (335, 871312), (355, 822224), (472, 618410), (520, 561326), (536, 544570), (568, 513890), (590, 494728), (670, 435656), (710, 411112), (767, 380560), (871, 335120), (923, 316240), (944, 309205), (1040, 280663), (1072, 272285), (1136, 256945), (1180, 247364), (1340, 217828), (1420, 205556), (1534, 190280), (1742, 167560), (1846, 158120), (2360, 123682), (2680, 108914), (2840, 102778), (3068, 95140), (3484, 83780), (3692, 79060), (3835, 76112), (3953, 73840), (4189, 69680), (4355, 67024), (4615, 63248), (4720, 61841), (4757, 61360), (5360, 54457), (5680, 51389), (6136, 47570), (6968, 41890), (7384, 39530), (7670, 38056), (7906, 36920), (8378, 34840), (8710, 33512), (9230, 31624), (9514, 30680), (12272, 23785), (13936, 20945), (14768, 19765), (15340, 19028), (15812, 18460), (16756, 17420)]