278340530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{22073}}^1$

素因数の和:22190

約数の個数: 32

約数和(自身を含む): 545139504

約数和(自身を除く): 266798974

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 2522, 6305, 12610, 22073, 44146, 110365, 220730, 286949, 573898, 1434745, 2141081, 2869490, 4282162, 10705405, 21410810, 27834053, 55668106, 139170265, 278340530]

約数ペア:

[(1, 278340530), (2, 139170265), (5, 55668106), (10, 27834053), (13, 21410810), (26, 10705405), (65, 4282162), (97, 2869490), (130, 2141081), (194, 1434745), (485, 573898), (970, 286949), (1261, 220730), (2522, 110365), (6305, 44146), (12610, 22073)]