1991177616

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{21937}}^1$

素因数の和:22040

約数の個数: 80

約数和(自身を含む): 5397099008

約数和(自身を除く): 3405921392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 61, 62, 93, 122, 124, 183, 186, 244, 248, 366, 372, 488, 496, 732, 744, 976, 1464, 1488, 1891, 2928, 3782, 5673, 7564, 11346, 15128, 21937, 22692, 30256, 43874, 45384, 65811, 87748, 90768, 131622, 175496, 263244, 350992, 526488, 680047, 1052976, 1338157, 1360094, 2040141, 2676314, 2720188, 4014471, 4080282, 5352628, 5440376, 8028942, 8160564, 10705256, 10880752, 16057884, 16321128, 21410512, 32115768, 32642256, 41482867, 64231536, 82965734, 124448601, 165931468, 248897202, 331862936, 497794404, 663725872, 995588808, 1991177616]

約数ペア:

[(1, 1991177616), (2, 995588808), (3, 663725872), (4, 497794404), (6, 331862936), (8, 248897202), (12, 165931468), (16, 124448601), (24, 82965734), (31, 64231536), (48, 41482867), (61, 32642256), (62, 32115768), (93, 21410512), (122, 16321128), (124, 16057884), (183, 10880752), (186, 10705256), (244, 8160564), (248, 8028942), (366, 5440376), (372, 5352628), (488, 4080282), (496, 4014471), (732, 2720188), (744, 2676314), (976, 2040141), (1464, 1360094), (1488, 1338157), (1891, 1052976), (2928, 680047), (3782, 526488), (5673, 350992), (7564, 263244), (11346, 175496), (15128, 131622), (21937, 90768), (22692, 87748), (30256, 65811), (43874, 45384)]