12271720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 29620800

約数和(自身を除く): 17349080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 241, 268, 335, 380, 482, 536, 670, 760, 964, 1205, 1273, 1340, 1928, 2410, 2546, 2680, 4579, 4820, 5092, 6365, 9158, 9640, 10184, 12730, 16147, 18316, 22895, 25460, 32294, 36632, 45790, 50920, 64588, 80735, 91580, 129176, 161470, 183160, 306793, 322940, 613586, 645880, 1227172, 1533965, 2454344, 3067930, 6135860, 12271720]

約数ペア:

[(1, 12271720), (2, 6135860), (4, 3067930), (5, 2454344), (8, 1533965), (10, 1227172), (19, 645880), (20, 613586), (38, 322940), (40, 306793), (67, 183160), (76, 161470), (95, 129176), (134, 91580), (152, 80735), (190, 64588), (241, 50920), (268, 45790), (335, 36632), (380, 32294), (482, 25460), (536, 22895), (670, 18316), (760, 16147), (964, 12730), (1205, 10184), (1273, 9640), (1340, 9158), (1928, 6365), (2410, 5092), (2546, 4820), (2680, 4579)]