217420990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{811}}^1$

素因数の和:937

約数の個数: 64

約数和(自身を含む): 441987840

約数和(自身を除く): 224566850

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 83, 85, 95, 166, 170, 190, 323, 415, 646, 811, 830, 1411, 1577, 1615, 1622, 2822, 3154, 3230, 4055, 7055, 7885, 8110, 13787, 14110, 15409, 15770, 26809, 27574, 30818, 53618, 67313, 68935, 77045, 134045, 134626, 137870, 154090, 261953, 268090, 336565, 523906, 673130, 1144321, 1278947, 1309765, 2288642, 2557894, 2619530, 5721605, 6394735, 11443210, 12789470, 21742099, 43484198, 108710495, 217420990]

約数ペア:

[(1, 217420990), (2, 108710495), (5, 43484198), (10, 21742099), (17, 12789470), (19, 11443210), (34, 6394735), (38, 5721605), (83, 2619530), (85, 2557894), (95, 2288642), (166, 1309765), (170, 1278947), (190, 1144321), (323, 673130), (415, 523906), (646, 336565), (811, 268090), (830, 261953), (1411, 154090), (1577, 137870), (1615, 134626), (1622, 134045), (2822, 77045), (3154, 68935), (3230, 67313), (4055, 53618), (7055, 30818), (7885, 27574), (8110, 26809), (13787, 15770), (14110, 15409)]