8815780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 19514880

約数和(自身を除く): 10699100

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 241, 295, 310, 482, 590, 620, 964, 1180, 1205, 1829, 2410, 3658, 4820, 7316, 7471, 9145, 14219, 14942, 18290, 28438, 29884, 36580, 37355, 56876, 71095, 74710, 142190, 149420, 284380, 440789, 881578, 1763156, 2203945, 4407890, 8815780]

約数ペア:

[(1, 8815780), (2, 4407890), (4, 2203945), (5, 1763156), (10, 881578), (20, 440789), (31, 284380), (59, 149420), (62, 142190), (118, 74710), (124, 71095), (155, 56876), (236, 37355), (241, 36580), (295, 29884), (310, 28438), (482, 18290), (590, 14942), (620, 14219), (964, 9145), (1180, 7471), (1205, 7316), (1829, 4820), (2410, 3658)]