13517240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 34283520

約数和(自身を除く): 20766280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 991, 1240, 1364, 1705, 1982, 2728, 3410, 3964, 4955, 6820, 7928, 9910, 10901, 13640, 19820, 21802, 30721, 39640, 43604, 54505, 61442, 87208, 109010, 122884, 153605, 218020, 245768, 307210, 337931, 436040, 614420, 675862, 1228840, 1351724, 1689655, 2703448, 3379310, 6758620, 13517240]

約数ペア:

[(1, 13517240), (2, 6758620), (4, 3379310), (5, 2703448), (8, 1689655), (10, 1351724), (11, 1228840), (20, 675862), (22, 614420), (31, 436040), (40, 337931), (44, 307210), (55, 245768), (62, 218020), (88, 153605), (110, 122884), (124, 109010), (155, 87208), (220, 61442), (248, 54505), (310, 43604), (341, 39640), (440, 30721), (620, 21802), (682, 19820), (991, 13640), (1240, 10901), (1364, 9910), (1705, 7928), (1982, 6820), (2728, 4955), (3410, 3964)]