25020380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:256

約数の個数: 108

約数和(自身を含む): 67501224

約数和(自身を除く): 42480844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 211, 220, 242, 245, 308, 385, 422, 484, 490, 539, 605, 770, 844, 847, 980, 1055, 1078, 1210, 1477, 1540, 1694, 2110, 2156, 2321, 2420, 2695, 2954, 3388, 4220, 4235, 4642, 5390, 5908, 5929, 7385, 8470, 9284, 10339, 10780, 11605, 11858, 14770, 16247, 16940, 20678, 23210, 23716, 25531, 29540, 29645, 32494, 41356, 46420, 51062, 51695, 59290, 64988, 81235, 102124, 103390, 113729, 118580, 127655, 162470, 178717, 206780, 227458, 255310, 324940, 357434, 454916, 510620, 568645, 714868, 893585, 1137290, 1251019, 1787170, 2274580, 2502038, 3574340, 5004076, 6255095, 12510190, 25020380]

約数ペア:

[(1, 25020380), (2, 12510190), (4, 6255095), (5, 5004076), (7, 3574340), (10, 2502038), (11, 2274580), (14, 1787170), (20, 1251019), (22, 1137290), (28, 893585), (35, 714868), (44, 568645), (49, 510620), (55, 454916), (70, 357434), (77, 324940), (98, 255310), (110, 227458), (121, 206780), (140, 178717), (154, 162470), (196, 127655), (211, 118580), (220, 113729), (242, 103390), (245, 102124), (308, 81235), (385, 64988), (422, 59290), (484, 51695), (490, 51062), (539, 46420), (605, 41356), (770, 32494), (844, 29645), (847, 29540), (980, 25531), (1055, 23716), (1078, 23210), (1210, 20678), (1477, 16940), (1540, 16247), (1694, 14770), (2110, 11858), (2156, 11605), (2321, 10780), (2420, 10339), (2695, 9284), (2954, 8470), (3388, 7385), (4220, 5929), (4235, 5908), (4642, 5390)]