320499855

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 652861440

約数和(自身を除く): 332361585

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 43, 45, 65, 93, 117, 129, 135, 137, 155, 195, 215, 279, 351, 387, 403, 411, 465, 559, 585, 645, 685, 837, 1161, 1209, 1233, 1333, 1395, 1677, 1755, 1781, 1935, 2015, 2055, 2795, 3627, 3699, 3999, 4185, 4247, 5031, 5343, 5805, 5891, 6045, 6165, 6665, 8385, 8905, 10881, 11997, 12741, 15093, 16029, 17329, 17673, 18135, 18495, 19995, 21235, 25155, 26715, 29455, 35991, 38223, 48087, 51987, 53019, 54405, 55211, 59985, 63705, 75465, 76583, 80145, 86645, 88365, 114669, 155961, 159057, 165633, 179955, 182621, 191115, 229749, 240435, 259935, 265095, 276055, 382915, 467883, 496899, 547863, 573345, 689247, 779805, 795285, 828165, 913105, 1148745, 1490697, 1643589, 2067741, 2339415, 2374073, 2484495, 2739315, 3446235, 4930767, 7122219, 7453485, 8217945, 10338705, 11870365, 21366657, 24653835, 35611095, 64099971, 106833285, 320499855]

約数ペア:

[(1, 320499855), (3, 106833285), (5, 64099971), (9, 35611095), (13, 24653835), (15, 21366657), (27, 11870365), (31, 10338705), (39, 8217945), (43, 7453485), (45, 7122219), (65, 4930767), (93, 3446235), (117, 2739315), (129, 2484495), (135, 2374073), (137, 2339415), (155, 2067741), (195, 1643589), (215, 1490697), (279, 1148745), (351, 913105), (387, 828165), (403, 795285), (411, 779805), (465, 689247), (559, 573345), (585, 547863), (645, 496899), (685, 467883), (837, 382915), (1161, 276055), (1209, 265095), (1233, 259935), (1333, 240435), (1395, 229749), (1677, 191115), (1755, 182621), (1781, 179955), (1935, 165633), (2015, 159057), (2055, 155961), (2795, 114669), (3627, 88365), (3699, 86645), (3999, 80145), (4185, 76583), (4247, 75465), (5031, 63705), (5343, 59985), (5805, 55211), (5891, 54405), (6045, 53019), (6165, 51987), (6665, 48087), (8385, 38223), (8905, 35991), (10881, 29455), (11997, 26715), (12741, 25155), (15093, 21235), (16029, 19995), (17329, 18495), (17673, 18135)]