30820920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:909

約数の個数: 128

約数和(自身を含む): 104025600

約数和(自身を除く): 73204680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 859, 897, 920, 1196, 1380, 1495, 1560, 1718, 1794, 2392, 2577, 2760, 2990, 3436, 3588, 4295, 4485, 5154, 5980, 6872, 7176, 8590, 8970, 10308, 11167, 11960, 12885, 17180, 17940, 19757, 20616, 22334, 25770, 33501, 34360, 35880, 39514, 44668, 51540, 55835, 59271, 67002, 79028, 89336, 98785, 103080, 111670, 118542, 134004, 158056, 167505, 197570, 223340, 237084, 256841, 268008, 296355, 335010, 395140, 446680, 474168, 513682, 592710, 670020, 770523, 790280, 1027364, 1185420, 1284205, 1340040, 1541046, 2054728, 2370840, 2568410, 3082092, 3852615, 5136820, 6164184, 7705230, 10273640, 15410460, 30820920]

約数ペア:

[(1, 30820920), (2, 15410460), (3, 10273640), (4, 7705230), (5, 6164184), (6, 5136820), (8, 3852615), (10, 3082092), (12, 2568410), (13, 2370840), (15, 2054728), (20, 1541046), (23, 1340040), (24, 1284205), (26, 1185420), (30, 1027364), (39, 790280), (40, 770523), (46, 670020), (52, 592710), (60, 513682), (65, 474168), (69, 446680), (78, 395140), (92, 335010), (104, 296355), (115, 268008), (120, 256841), (130, 237084), (138, 223340), (156, 197570), (184, 167505), (195, 158056), (230, 134004), (260, 118542), (276, 111670), (299, 103080), (312, 98785), (345, 89336), (390, 79028), (460, 67002), (520, 59271), (552, 55835), (598, 51540), (690, 44668), (780, 39514), (859, 35880), (897, 34360), (920, 33501), (1196, 25770), (1380, 22334), (1495, 20616), (1560, 19757), (1718, 17940), (1794, 17180), (2392, 12885), (2577, 11960), (2760, 11167), (2990, 10308), (3436, 8970), (3588, 8590), (4295, 7176), (4485, 6872), (5154, 5980)]