81988790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1613}}^1$

素因数の和:1673

約数の個数: 64

約数和(自身を含む): 175706496

約数和(自身を除く): 93717706

約数列:

[1, 2, 5, 10, 13, 17, 23, 26, 34, 46, 65, 85, 115, 130, 170, 221, 230, 299, 391, 442, 598, 782, 1105, 1495, 1613, 1955, 2210, 2990, 3226, 3910, 5083, 8065, 10166, 16130, 20969, 25415, 27421, 37099, 41938, 50830, 54842, 74198, 104845, 137105, 185495, 209690, 274210, 356473, 370990, 482287, 630683, 712946, 964574, 1261366, 1782365, 2411435, 3153415, 3564730, 4822870, 6306830, 8198879, 16397758, 40994395, 81988790]

約数ペア:

[(1, 81988790), (2, 40994395), (5, 16397758), (10, 8198879), (13, 6306830), (17, 4822870), (23, 3564730), (26, 3153415), (34, 2411435), (46, 1782365), (65, 1261366), (85, 964574), (115, 712946), (130, 630683), (170, 482287), (221, 370990), (230, 356473), (299, 274210), (391, 209690), (442, 185495), (598, 137105), (782, 104845), (1105, 74198), (1495, 54842), (1613, 50830), (1955, 41938), (2210, 37099), (2990, 27421), (3226, 25415), (3910, 20969), (5083, 16130), (8065, 10166)]