320061040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 160

約数和(自身を含む): 870319296

約数和(自身を除く): 550258256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 43, 52, 65, 68, 80, 85, 86, 104, 130, 136, 170, 172, 208, 215, 221, 260, 272, 340, 344, 421, 430, 442, 520, 559, 680, 688, 731, 842, 860, 884, 1040, 1105, 1118, 1360, 1462, 1684, 1720, 1768, 2105, 2210, 2236, 2795, 2924, 3368, 3440, 3536, 3655, 4210, 4420, 4472, 5473, 5590, 5848, 6736, 7157, 7310, 8420, 8840, 8944, 9503, 10946, 11180, 11696, 14314, 14620, 16840, 17680, 18103, 19006, 21892, 22360, 27365, 28628, 29240, 33680, 35785, 36206, 38012, 43784, 44720, 47515, 54730, 57256, 58480, 71570, 72412, 76024, 87568, 90515, 93041, 95030, 109460, 114512, 143140, 144824, 152048, 181030, 186082, 190060, 218920, 235339, 286280, 289648, 307751, 362060, 372164, 380120, 437840, 465205, 470678, 572560, 615502, 724120, 744328, 760240, 930410, 941356, 1176695, 1231004, 1448240, 1488656, 1538755, 1860820, 1882712, 2353390, 2462008, 3077510, 3721640, 3765424, 4000763, 4706780, 4924016, 6155020, 7443280, 8001526, 9413560, 12310040, 16003052, 18827120, 20003815, 24620080, 32006104, 40007630, 64012208, 80015260, 160030520, 320061040]

約数ペア:

[(1, 320061040), (2, 160030520), (4, 80015260), (5, 64012208), (8, 40007630), (10, 32006104), (13, 24620080), (16, 20003815), (17, 18827120), (20, 16003052), (26, 12310040), (34, 9413560), (40, 8001526), (43, 7443280), (52, 6155020), (65, 4924016), (68, 4706780), (80, 4000763), (85, 3765424), (86, 3721640), (104, 3077510), (130, 2462008), (136, 2353390), (170, 1882712), (172, 1860820), (208, 1538755), (215, 1488656), (221, 1448240), (260, 1231004), (272, 1176695), (340, 941356), (344, 930410), (421, 760240), (430, 744328), (442, 724120), (520, 615502), (559, 572560), (680, 470678), (688, 465205), (731, 437840), (842, 380120), (860, 372164), (884, 362060), (1040, 307751), (1105, 289648), (1118, 286280), (1360, 235339), (1462, 218920), (1684, 190060), (1720, 186082), (1768, 181030), (2105, 152048), (2210, 144824), (2236, 143140), (2795, 114512), (2924, 109460), (3368, 95030), (3440, 93041), (3536, 90515), (3655, 87568), (4210, 76024), (4420, 72412), (4472, 71570), (5473, 58480), (5590, 57256), (5848, 54730), (6736, 47515), (7157, 44720), (7310, 43784), (8420, 38012), (8840, 36206), (8944, 35785), (9503, 33680), (10946, 29240), (11180, 28628), (11696, 27365), (14314, 22360), (14620, 21892), (16840, 19006), (17680, 18103)]