25158980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 72067968

約数和(自身を除く): 46908988

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 31, 34, 35, 44, 55, 62, 68, 70, 77, 85, 110, 119, 124, 140, 154, 155, 170, 187, 217, 220, 238, 308, 310, 340, 341, 374, 385, 434, 476, 527, 595, 620, 682, 748, 770, 868, 935, 961, 1054, 1085, 1190, 1309, 1364, 1540, 1705, 1870, 1922, 2108, 2170, 2380, 2387, 2618, 2635, 3410, 3689, 3740, 3844, 4340, 4774, 4805, 5236, 5270, 5797, 6545, 6727, 6820, 7378, 9548, 9610, 10540, 10571, 11594, 11935, 13090, 13454, 14756, 16337, 18445, 19220, 21142, 23188, 23870, 26180, 26908, 28985, 32674, 33635, 36890, 40579, 42284, 47740, 52855, 57970, 65348, 67270, 73780, 73997, 81158, 81685, 105710, 114359, 115940, 134540, 147994, 162316, 163370, 179707, 202895, 211420, 228718, 295988, 326740, 359414, 369985, 405790, 457436, 571795, 718828, 739970, 811580, 898535, 1143590, 1257949, 1479940, 1797070, 2287180, 2515898, 3594140, 5031796, 6289745, 12579490, 25158980]

約数ペア:

[(1, 25158980), (2, 12579490), (4, 6289745), (5, 5031796), (7, 3594140), (10, 2515898), (11, 2287180), (14, 1797070), (17, 1479940), (20, 1257949), (22, 1143590), (28, 898535), (31, 811580), (34, 739970), (35, 718828), (44, 571795), (55, 457436), (62, 405790), (68, 369985), (70, 359414), (77, 326740), (85, 295988), (110, 228718), (119, 211420), (124, 202895), (140, 179707), (154, 163370), (155, 162316), (170, 147994), (187, 134540), (217, 115940), (220, 114359), (238, 105710), (308, 81685), (310, 81158), (340, 73997), (341, 73780), (374, 67270), (385, 65348), (434, 57970), (476, 52855), (527, 47740), (595, 42284), (620, 40579), (682, 36890), (748, 33635), (770, 32674), (868, 28985), (935, 26908), (961, 26180), (1054, 23870), (1085, 23188), (1190, 21142), (1309, 19220), (1364, 18445), (1540, 16337), (1705, 14756), (1870, 13454), (1922, 13090), (2108, 11935), (2170, 11594), (2380, 10571), (2387, 10540), (2618, 9610), (2635, 9548), (3410, 7378), (3689, 6820), (3740, 6727), (3844, 6545), (4340, 5797), (4774, 5270), (4805, 5236)]