323156990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{7993}}^1$

素因数の和:8324

約数の個数: 32

約数和(自身を含む): 628520256

約数和(自身を除く): 305363266

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 622, 1555, 3110, 4043, 7993, 8086, 15986, 20215, 39965, 40430, 79930, 103909, 207818, 519545, 1039090, 2485823, 4971646, 12429115, 24858230, 32315699, 64631398, 161578495, 323156990]

約数ペア:

[(1, 323156990), (2, 161578495), (5, 64631398), (10, 32315699), (13, 24858230), (26, 12429115), (65, 4971646), (130, 2485823), (311, 1039090), (622, 519545), (1555, 207818), (3110, 103909), (4043, 79930), (7993, 40430), (8086, 39965), (15986, 20215)]