128857155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 248002560

約数和(自身を除く): 119145405

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 229, 233, 345, 483, 687, 699, 805, 1145, 1165, 1603, 1631, 2415, 3435, 3495, 4809, 4893, 5267, 5359, 8015, 8155, 15801, 16077, 24045, 24465, 26335, 26795, 36869, 37513, 53357, 79005, 80385, 110607, 112539, 160071, 184345, 187565, 266785, 373499, 553035, 562695, 800355, 1120497, 1227211, 1867495, 3681633, 5602485, 6136055, 8590477, 18408165, 25771431, 42952385, 128857155]

約数ペア:

[(1, 128857155), (3, 42952385), (5, 25771431), (7, 18408165), (15, 8590477), (21, 6136055), (23, 5602485), (35, 3681633), (69, 1867495), (105, 1227211), (115, 1120497), (161, 800355), (229, 562695), (233, 553035), (345, 373499), (483, 266785), (687, 187565), (699, 184345), (805, 160071), (1145, 112539), (1165, 110607), (1603, 80385), (1631, 79005), (2415, 53357), (3435, 37513), (3495, 36869), (4809, 26795), (4893, 26335), (5267, 24465), (5359, 24045), (8015, 16077), (8155, 15801)]