22640540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 53870208

約数和(自身を除く): 31229668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 53, 62, 65, 106, 124, 130, 155, 212, 260, 265, 310, 403, 530, 620, 689, 806, 1060, 1378, 1612, 1643, 2015, 2756, 2809, 3286, 3445, 4030, 5618, 6572, 6890, 8060, 8215, 11236, 13780, 14045, 16430, 21359, 28090, 32860, 36517, 42718, 56180, 73034, 85436, 87079, 106795, 146068, 174158, 182585, 213590, 348316, 365170, 427180, 435395, 730340, 870790, 1132027, 1741580, 2264054, 4528108, 5660135, 11320270, 22640540]

約数ペア:

[(1, 22640540), (2, 11320270), (4, 5660135), (5, 4528108), (10, 2264054), (13, 1741580), (20, 1132027), (26, 870790), (31, 730340), (52, 435395), (53, 427180), (62, 365170), (65, 348316), (106, 213590), (124, 182585), (130, 174158), (155, 146068), (212, 106795), (260, 87079), (265, 85436), (310, 73034), (403, 56180), (530, 42718), (620, 36517), (689, 32860), (806, 28090), (1060, 21359), (1378, 16430), (1612, 14045), (1643, 13780), (2015, 11236), (2756, 8215), (2809, 8060), (3286, 6890), (3445, 6572), (4030, 5618)]