256854360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17987}}^1$

素因数の和:18025

約数の個数: 128

約数和(自身を含む): 932497920

約数和(自身を除く): 675643560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 17987, 35974, 53961, 71948, 89935, 107922, 125909, 143896, 179870, 215844, 251818, 269805, 305779, 359740, 377727, 431688, 503636, 539610, 611558, 629545, 719480, 755454, 917337, 1007272, 1079220, 1223116, 1259090, 1510908, 1528895, 1834674, 1888635, 2140453, 2158440, 2446232, 2518180, 3021816, 3057790, 3669348, 3777270, 4280906, 4586685, 5036360, 6115580, 6421359, 7338696, 7554540, 8561812, 9173370, 10702265, 12231160, 12842718, 15109080, 17123624, 18346740, 21404530, 25685436, 32106795, 36693480, 42809060, 51370872, 64213590, 85618120, 128427180, 256854360]

約数ペア:

[(1, 256854360), (2, 128427180), (3, 85618120), (4, 64213590), (5, 51370872), (6, 42809060), (7, 36693480), (8, 32106795), (10, 25685436), (12, 21404530), (14, 18346740), (15, 17123624), (17, 15109080), (20, 12842718), (21, 12231160), (24, 10702265), (28, 9173370), (30, 8561812), (34, 7554540), (35, 7338696), (40, 6421359), (42, 6115580), (51, 5036360), (56, 4586685), (60, 4280906), (68, 3777270), (70, 3669348), (84, 3057790), (85, 3021816), (102, 2518180), (105, 2446232), (119, 2158440), (120, 2140453), (136, 1888635), (140, 1834674), (168, 1528895), (170, 1510908), (204, 1259090), (210, 1223116), (238, 1079220), (255, 1007272), (280, 917337), (340, 755454), (357, 719480), (408, 629545), (420, 611558), (476, 539610), (510, 503636), (595, 431688), (680, 377727), (714, 359740), (840, 305779), (952, 269805), (1020, 251818), (1190, 215844), (1428, 179870), (1785, 143896), (2040, 125909), (2380, 107922), (2856, 89935), (3570, 71948), (4760, 53961), (7140, 35974), (14280, 17987)]