81331910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 128

約数和(自身を含む): 185131008

約数和(自身を除く): 103799098

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 31, 34, 46, 55, 61, 62, 85, 110, 115, 122, 155, 170, 187, 230, 253, 305, 310, 341, 374, 391, 506, 527, 610, 671, 682, 713, 782, 935, 1037, 1054, 1265, 1342, 1403, 1426, 1705, 1870, 1891, 1955, 2074, 2530, 2635, 2806, 3355, 3410, 3565, 3782, 3910, 4301, 5185, 5270, 5797, 6710, 7015, 7130, 7843, 8602, 9455, 10370, 11407, 11594, 12121, 14030, 15433, 15686, 18910, 20801, 21505, 22814, 23851, 24242, 28985, 30866, 32147, 39215, 41602, 43010, 43493, 47702, 57035, 57970, 60605, 64294, 77165, 78430, 86986, 104005, 114070, 119255, 121210, 133331, 154330, 160735, 208010, 217465, 238510, 262361, 266662, 321470, 353617, 434930, 478423, 524722, 666655, 707234, 739381, 956846, 1311805, 1333310, 1478762, 1768085, 2392115, 2623610, 3536170, 3696905, 4784230, 7393810, 8133191, 16266382, 40665955, 81331910]

約数ペア:

[(1, 81331910), (2, 40665955), (5, 16266382), (10, 8133191), (11, 7393810), (17, 4784230), (22, 3696905), (23, 3536170), (31, 2623610), (34, 2392115), (46, 1768085), (55, 1478762), (61, 1333310), (62, 1311805), (85, 956846), (110, 739381), (115, 707234), (122, 666655), (155, 524722), (170, 478423), (187, 434930), (230, 353617), (253, 321470), (305, 266662), (310, 262361), (341, 238510), (374, 217465), (391, 208010), (506, 160735), (527, 154330), (610, 133331), (671, 121210), (682, 119255), (713, 114070), (782, 104005), (935, 86986), (1037, 78430), (1054, 77165), (1265, 64294), (1342, 60605), (1403, 57970), (1426, 57035), (1705, 47702), (1870, 43493), (1891, 43010), (1955, 41602), (2074, 39215), (2530, 32147), (2635, 30866), (2806, 28985), (3355, 24242), (3410, 23851), (3565, 22814), (3782, 21505), (3910, 20801), (4301, 18910), (5185, 15686), (5270, 15433), (5797, 14030), (6710, 12121), (7015, 11594), (7130, 11407), (7843, 10370), (8602, 9455)]