199207855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 310210560

約数和(自身を除く): 111002705

約数列:

[1, 5, 7, 11, 35, 47, 55, 77, 101, 109, 235, 329, 385, 505, 517, 545, 707, 763, 1111, 1199, 1645, 2585, 3535, 3619, 3815, 4747, 5123, 5555, 5995, 7777, 8393, 11009, 18095, 23735, 25615, 33229, 35861, 38885, 41965, 52217, 55045, 56353, 77063, 121099, 166145, 179305, 261085, 281765, 365519, 385315, 394471, 517423, 605495, 847693, 1827595, 1972355, 2587115, 3621961, 4238465, 5691653, 18109805, 28458265, 39841571, 199207855]

約数ペア:

[(1, 199207855), (5, 39841571), (7, 28458265), (11, 18109805), (35, 5691653), (47, 4238465), (55, 3621961), (77, 2587115), (101, 1972355), (109, 1827595), (235, 847693), (329, 605495), (385, 517423), (505, 394471), (517, 385315), (545, 365519), (707, 281765), (763, 261085), (1111, 179305), (1199, 166145), (1645, 121099), (2585, 77063), (3535, 56353), (3619, 55045), (3815, 52217), (4747, 41965), (5123, 38885), (5555, 35861), (5995, 33229), (7777, 25615), (8393, 23735), (11009, 18095)]