647948639

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 745113600

約数和(自身を除く): 97164961

約数列:

[1, 13, 31, 43, 139, 269, 403, 559, 1333, 1807, 3497, 4309, 5977, 8339, 11567, 17329, 37391, 56017, 77701, 108407, 150371, 185287, 358577, 486083, 1159121, 1607813, 2408731, 4661501, 15068573, 20901569, 49842203, 647948639]

約数ペア:

[(1, 647948639), (13, 49842203), (31, 20901569), (43, 15068573), (139, 4661501), (269, 2408731), (403, 1607813), (559, 1159121), (1333, 486083), (1807, 358577), (3497, 185287), (4309, 150371), (5977, 108407), (8339, 77701), (11567, 56017), (17329, 37391)]