12217720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 29030400

約数和(自身を除く): 16812680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 118, 124, 155, 167, 236, 248, 295, 310, 334, 472, 590, 620, 668, 835, 1180, 1240, 1336, 1670, 1829, 2360, 3340, 3658, 5177, 6680, 7316, 9145, 9853, 10354, 14632, 18290, 19706, 20708, 25885, 36580, 39412, 41416, 49265, 51770, 73160, 78824, 98530, 103540, 197060, 207080, 305443, 394120, 610886, 1221772, 1527215, 2443544, 3054430, 6108860, 12217720]

約数ペア:

[(1, 12217720), (2, 6108860), (4, 3054430), (5, 2443544), (8, 1527215), (10, 1221772), (20, 610886), (31, 394120), (40, 305443), (59, 207080), (62, 197060), (118, 103540), (124, 98530), (155, 78824), (167, 73160), (236, 51770), (248, 49265), (295, 41416), (310, 39412), (334, 36580), (472, 25885), (590, 20708), (620, 19706), (668, 18290), (835, 14632), (1180, 10354), (1240, 9853), (1336, 9145), (1670, 7316), (1829, 6680), (2360, 5177), (3340, 3658)]