13681720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 33657120

約数和(自身を除く): 19975400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 166, 260, 317, 332, 415, 520, 634, 664, 830, 1079, 1268, 1585, 1660, 2158, 2536, 3170, 3320, 4121, 4316, 5395, 6340, 8242, 8632, 10790, 12680, 16484, 20605, 21580, 26311, 32968, 41210, 43160, 52622, 82420, 105244, 131555, 164840, 210488, 263110, 342043, 526220, 684086, 1052440, 1368172, 1710215, 2736344, 3420430, 6840860, 13681720]

約数ペア:

[(1, 13681720), (2, 6840860), (4, 3420430), (5, 2736344), (8, 1710215), (10, 1368172), (13, 1052440), (20, 684086), (26, 526220), (40, 342043), (52, 263110), (65, 210488), (83, 164840), (104, 131555), (130, 105244), (166, 82420), (260, 52622), (317, 43160), (332, 41210), (415, 32968), (520, 26311), (634, 21580), (664, 20605), (830, 16484), (1079, 12680), (1268, 10790), (1585, 8632), (1660, 8242), (2158, 6340), (2536, 5395), (3170, 4316), (3320, 4121)]