898974778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 1570343040

約数和(自身を除く): 671368262

約数列:

[1, 2, 13, 19, 26, 38, 67, 134, 157, 173, 247, 314, 346, 494, 871, 1273, 1742, 2041, 2249, 2546, 2983, 3287, 4082, 4498, 5966, 6574, 10519, 11591, 16549, 21038, 23182, 27161, 33098, 38779, 42731, 54322, 77558, 85462, 136747, 150683, 199861, 220229, 273494, 301366, 353093, 399722, 440458, 516059, 706186, 1032118, 1819787, 2598193, 2862977, 3639574, 5196386, 5725954, 6708767, 13417534, 23657231, 34575953, 47314462, 69151906, 449487389, 898974778]

約数ペア:

[(1, 898974778), (2, 449487389), (13, 69151906), (19, 47314462), (26, 34575953), (38, 23657231), (67, 13417534), (134, 6708767), (157, 5725954), (173, 5196386), (247, 3639574), (314, 2862977), (346, 2598193), (494, 1819787), (871, 1032118), (1273, 706186), (1742, 516059), (2041, 440458), (2249, 399722), (2546, 353093), (2983, 301366), (3287, 273494), (4082, 220229), (4498, 199861), (5966, 150683), (6574, 136747), (10519, 85462), (11591, 77558), (16549, 54322), (21038, 42731), (23182, 38779), (27161, 33098)]