31640570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 66044160

約数和(自身を除く): 34403590

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 103, 130, 139, 170, 206, 221, 278, 442, 515, 695, 1030, 1105, 1339, 1390, 1751, 1807, 2210, 2363, 2678, 3502, 3614, 4726, 6695, 8755, 9035, 11815, 13390, 14317, 17510, 18070, 22763, 23630, 28634, 30719, 45526, 61438, 71585, 113815, 143170, 153595, 186121, 227630, 243389, 307190, 372242, 486778, 930605, 1216945, 1861210, 2433890, 3164057, 6328114, 15820285, 31640570]

約数ペア:

[(1, 31640570), (2, 15820285), (5, 6328114), (10, 3164057), (13, 2433890), (17, 1861210), (26, 1216945), (34, 930605), (65, 486778), (85, 372242), (103, 307190), (130, 243389), (139, 227630), (170, 186121), (206, 153595), (221, 143170), (278, 113815), (442, 71585), (515, 61438), (695, 45526), (1030, 30719), (1105, 28634), (1339, 23630), (1390, 22763), (1751, 18070), (1807, 17510), (2210, 14317), (2363, 13390), (2678, 11815), (3502, 9035), (3614, 8755), (4726, 6695)]