68890370

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 135475200

約数和(自身を除く): 66584830

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 79, 97, 145, 155, 158, 194, 290, 310, 395, 485, 790, 899, 970, 1798, 2291, 2449, 2813, 3007, 4495, 4582, 4898, 5626, 6014, 7663, 8990, 11455, 12245, 14065, 15035, 15326, 22910, 24490, 28130, 30070, 38315, 71021, 76630, 87203, 142042, 174406, 222227, 237553, 355105, 436015, 444454, 475106, 710210, 872030, 1111135, 1187765, 2222270, 2375530, 6889037, 13778074, 34445185, 68890370]

約数ペア:

[(1, 68890370), (2, 34445185), (5, 13778074), (10, 6889037), (29, 2375530), (31, 2222270), (58, 1187765), (62, 1111135), (79, 872030), (97, 710210), (145, 475106), (155, 444454), (158, 436015), (194, 355105), (290, 237553), (310, 222227), (395, 174406), (485, 142042), (790, 87203), (899, 76630), (970, 71021), (1798, 38315), (2291, 30070), (2449, 28130), (2813, 24490), (3007, 22910), (4495, 15326), (4582, 15035), (4898, 14065), (5626, 12245), (6014, 11455), (7663, 8990)]