257584990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1301}}^1\times {\mathrm{1523}}^1$

素因数の和:2844

約数の個数: 32

約数和(自身を含む): 500030496

約数和(自身を除く): 242445506

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1301, 1523, 2602, 3046, 6505, 7615, 13010, 15230, 16913, 19799, 33826, 39598, 84565, 98995, 169130, 197990, 1981423, 3962846, 9907115, 19814230, 25758499, 51516998, 128792495, 257584990]

約数ペア:

[(1, 257584990), (2, 128792495), (5, 51516998), (10, 25758499), (13, 19814230), (26, 9907115), (65, 3962846), (130, 1981423), (1301, 197990), (1523, 169130), (2602, 98995), (3046, 84565), (6505, 39598), (7615, 33826), (13010, 19799), (15230, 16913)]