180506990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1\times {\mathrm{1409}}^1$

素因数の和:1996

約数の個数: 32

約数和(自身を含む): 339888960

約数和(自身を除く): 159381970

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 557, 1114, 1409, 2785, 2818, 5570, 7045, 12811, 14090, 25622, 32407, 64055, 64814, 128110, 162035, 324070, 784813, 1569626, 3924065, 7848130, 18050699, 36101398, 90253495, 180506990]

約数ペア:

[(1, 180506990), (2, 90253495), (5, 36101398), (10, 18050699), (23, 7848130), (46, 3924065), (115, 1569626), (230, 784813), (557, 324070), (1114, 162035), (1409, 128110), (2785, 64814), (2818, 64055), (5570, 32407), (7045, 25622), (12811, 14090)]