13279997375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 17461132416

約数和(自身を除く): 4181135041

約数列:

[1, 5, 25, 41, 61, 107, 125, 205, 305, 397, 535, 1025, 1525, 1985, 2501, 2675, 4387, 5125, 6527, 7625, 9925, 12505, 13375, 16277, 21935, 24217, 32635, 42479, 49625, 62525, 81385, 109675, 121085, 163175, 212395, 267607, 312625, 406925, 548375, 605425, 815875, 992897, 1061975, 1338035, 1741639, 2034625, 2591219, 3027125, 4964485, 5309875, 6690175, 8708195, 12956095, 24822425, 33450875, 43540975, 64780475, 106239979, 124112125, 217704875, 323902375, 531199895, 2655999475, 13279997375]

約数ペア:

[(1, 13279997375), (5, 2655999475), (25, 531199895), (41, 323902375), (61, 217704875), (107, 124112125), (125, 106239979), (205, 64780475), (305, 43540975), (397, 33450875), (535, 24822425), (1025, 12956095), (1525, 8708195), (1985, 6690175), (2501, 5309875), (2675, 4964485), (4387, 3027125), (5125, 2591219), (6527, 2034625), (7625, 1741639), (9925, 1338035), (12505, 1061975), (13375, 992897), (16277, 815875), (21935, 605425), (24217, 548375), (32635, 406925), (42479, 312625), (49625, 267607), (62525, 212395), (81385, 163175), (109675, 121085)]