15978820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 40755456

約数和(自身を除く): 24776636

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 37, 44, 52, 55, 65, 74, 110, 130, 143, 148, 151, 185, 220, 260, 286, 302, 370, 407, 481, 572, 604, 715, 740, 755, 814, 962, 1430, 1510, 1628, 1661, 1924, 1963, 2035, 2405, 2860, 3020, 3322, 3926, 4070, 4810, 5291, 5587, 6644, 7852, 8140, 8305, 9620, 9815, 10582, 11174, 16610, 19630, 21164, 21593, 22348, 26455, 27935, 33220, 39260, 43186, 52910, 55870, 61457, 72631, 86372, 105820, 107965, 111740, 122914, 145262, 215930, 245828, 290524, 307285, 363155, 431860, 614570, 726310, 798941, 1229140, 1452620, 1597882, 3195764, 3994705, 7989410, 15978820]

約数ペア:

[(1, 15978820), (2, 7989410), (4, 3994705), (5, 3195764), (10, 1597882), (11, 1452620), (13, 1229140), (20, 798941), (22, 726310), (26, 614570), (37, 431860), (44, 363155), (52, 307285), (55, 290524), (65, 245828), (74, 215930), (110, 145262), (130, 122914), (143, 111740), (148, 107965), (151, 105820), (185, 86372), (220, 72631), (260, 61457), (286, 55870), (302, 52910), (370, 43186), (407, 39260), (481, 33220), (572, 27935), (604, 26455), (715, 22348), (740, 21593), (755, 21164), (814, 19630), (962, 16610), (1430, 11174), (1510, 10582), (1628, 9815), (1661, 9620), (1924, 8305), (1963, 8140), (2035, 7852), (2405, 6644), (2860, 5587), (3020, 5291), (3322, 4810), (3926, 4070)]