1851558995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 2978519040

約数和(自身を除く): 1126960045

約数列:

[1, 5, 11, 13, 17, 23, 37, 55, 65, 85, 115, 143, 179, 185, 187, 221, 253, 299, 391, 407, 481, 629, 715, 851, 895, 935, 1105, 1265, 1495, 1955, 1969, 2035, 2327, 2405, 2431, 3043, 3145, 3289, 4117, 4255, 4301, 5083, 5291, 6623, 6919, 8177, 9361, 9845, 11063, 11635, 12155, 14467, 15215, 16445, 20585, 21505, 25415, 25597, 26455, 33115, 33473, 34595, 39559, 40885, 45287, 46805, 53521, 55315, 55913, 69989, 72335, 72853, 86099, 89947, 112591, 121693, 127985, 152329, 159137, 167365, 188071, 197795, 226435, 267605, 279565, 349945, 364265, 430495, 435149, 449735, 562955, 588731, 608465, 761645, 769879, 795685, 909857, 940355, 947089, 1238501, 1463683, 1675619, 1980277, 2068781, 2175745, 2589593, 2943655, 3849395, 4549285, 4735445, 6192505, 7318415, 8378095, 9901385, 10008427, 10343905, 12947965, 16100513, 21783047, 28485523, 33664709, 50042135, 80502565, 108915235, 142427615, 168323545, 370311799, 1851558995]

約数ペア:

[(1, 1851558995), (5, 370311799), (11, 168323545), (13, 142427615), (17, 108915235), (23, 80502565), (37, 50042135), (55, 33664709), (65, 28485523), (85, 21783047), (115, 16100513), (143, 12947965), (179, 10343905), (185, 10008427), (187, 9901385), (221, 8378095), (253, 7318415), (299, 6192505), (391, 4735445), (407, 4549285), (481, 3849395), (629, 2943655), (715, 2589593), (851, 2175745), (895, 2068781), (935, 1980277), (1105, 1675619), (1265, 1463683), (1495, 1238501), (1955, 947089), (1969, 940355), (2035, 909857), (2327, 795685), (2405, 769879), (2431, 761645), (3043, 608465), (3145, 588731), (3289, 562955), (4117, 449735), (4255, 435149), (4301, 430495), (5083, 364265), (5291, 349945), (6623, 279565), (6919, 267605), (8177, 226435), (9361, 197795), (9845, 188071), (11063, 167365), (11635, 159137), (12155, 152329), (14467, 127985), (15215, 121693), (16445, 112591), (20585, 89947), (21505, 86099), (25415, 72853), (25597, 72335), (26455, 69989), (33115, 55913), (33473, 55315), (34595, 53521), (39559, 46805), (40885, 45287)]