55721640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1553}}^1$

素因数の和:1603

約数の個数: 128

約数和(自身を含む): 187971840

約数和(自身を除く): 132250200

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, 897, 920, 1196, 1380, 1495, 1553, 1560, 1794, 2392, 2760, 2990, 3106, 3588, 4485, 4659, 5980, 6212, 7176, 7765, 8970, 9318, 11960, 12424, 15530, 17940, 18636, 20189, 23295, 31060, 35719, 35880, 37272, 40378, 46590, 60567, 62120, 71438, 80756, 93180, 100945, 107157, 121134, 142876, 161512, 178595, 186360, 201890, 214314, 242268, 285752, 302835, 357190, 403780, 428628, 464347, 484536, 535785, 605670, 714380, 807560, 857256, 928694, 1071570, 1211340, 1393041, 1428760, 1857388, 2143140, 2321735, 2422680, 2786082, 3714776, 4286280, 4643470, 5572164, 6965205, 9286940, 11144328, 13930410, 18573880, 27860820, 55721640]

約数ペア:

[(1, 55721640), (2, 27860820), (3, 18573880), (4, 13930410), (5, 11144328), (6, 9286940), (8, 6965205), (10, 5572164), (12, 4643470), (13, 4286280), (15, 3714776), (20, 2786082), (23, 2422680), (24, 2321735), (26, 2143140), (30, 1857388), (39, 1428760), (40, 1393041), (46, 1211340), (52, 1071570), (60, 928694), (65, 857256), (69, 807560), (78, 714380), (92, 605670), (104, 535785), (115, 484536), (120, 464347), (130, 428628), (138, 403780), (156, 357190), (184, 302835), (195, 285752), (230, 242268), (260, 214314), (276, 201890), (299, 186360), (312, 178595), (345, 161512), (390, 142876), (460, 121134), (520, 107157), (552, 100945), (598, 93180), (690, 80756), (780, 71438), (897, 62120), (920, 60567), (1196, 46590), (1380, 40378), (1495, 37272), (1553, 35880), (1560, 35719), (1794, 31060), (2392, 23295), (2760, 20189), (2990, 18636), (3106, 17940), (3588, 15530), (4485, 12424), (4659, 11960), (5980, 9318), (6212, 8970), (7176, 7765)]