640863743

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 750701952

約数和(自身を除く): 109838209

約数列:

[1, 13, 23, 41, 61, 299, 533, 793, 857, 943, 1403, 2501, 11141, 12259, 18239, 19711, 32513, 35137, 52277, 57523, 256243, 456781, 679601, 747799, 808151, 1202371, 2143357, 10505963, 15630823, 27863641, 49297211, 640863743]

約数ペア:

[(1, 640863743), (13, 49297211), (23, 27863641), (41, 15630823), (61, 10505963), (299, 2143357), (533, 1202371), (793, 808151), (857, 747799), (943, 679601), (1403, 456781), (2501, 256243), (11141, 57523), (12259, 52277), (18239, 35137), (19711, 32513)]