1420447140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{15443}}^1$

素因数の和:15538

約数の個数: 144

約数和(自身を含む): 4991995008

約数和(自身を除く): 3571547868

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 315, 365, 420, 438, 511, 630, 657, 730, 876, 1022, 1095, 1260, 1314, 1460, 1533, 2044, 2190, 2555, 2628, 3066, 3285, 4380, 4599, 5110, 6132, 6570, 7665, 9198, 10220, 13140, 15330, 15443, 18396, 22995, 30660, 30886, 45990, 46329, 61772, 77215, 91980, 92658, 108101, 138987, 154430, 185316, 216202, 231645, 277974, 308860, 324303, 432404, 463290, 540505, 555948, 648606, 694935, 926580, 972909, 1081010, 1127339, 1297212, 1389870, 1621515, 1945818, 2162020, 2254678, 2779740, 3243030, 3382017, 3891636, 4509356, 4864545, 5636695, 6486060, 6764034, 7891373, 9729090, 10146051, 11273390, 13528068, 15782746, 16910085, 19458180, 20292102, 22546780, 23674119, 31565492, 33820170, 39456865, 40584204, 47348238, 50730255, 67640340, 71022357, 78913730, 94696476, 101460510, 118370595, 142044714, 157827460, 202921020, 236741190, 284089428, 355111785, 473482380, 710223570, 1420447140]

約数ペア:

[(1, 1420447140), (2, 710223570), (3, 473482380), (4, 355111785), (5, 284089428), (6, 236741190), (7, 202921020), (9, 157827460), (10, 142044714), (12, 118370595), (14, 101460510), (15, 94696476), (18, 78913730), (20, 71022357), (21, 67640340), (28, 50730255), (30, 47348238), (35, 40584204), (36, 39456865), (42, 33820170), (45, 31565492), (60, 23674119), (63, 22546780), (70, 20292102), (73, 19458180), (84, 16910085), (90, 15782746), (105, 13528068), (126, 11273390), (140, 10146051), (146, 9729090), (180, 7891373), (210, 6764034), (219, 6486060), (252, 5636695), (292, 4864545), (315, 4509356), (365, 3891636), (420, 3382017), (438, 3243030), (511, 2779740), (630, 2254678), (657, 2162020), (730, 1945818), (876, 1621515), (1022, 1389870), (1095, 1297212), (1260, 1127339), (1314, 1081010), (1460, 972909), (1533, 926580), (2044, 694935), (2190, 648606), (2555, 555948), (2628, 540505), (3066, 463290), (3285, 432404), (4380, 324303), (4599, 308860), (5110, 277974), (6132, 231645), (6570, 216202), (7665, 185316), (9198, 154430), (10220, 138987), (13140, 108101), (15330, 92658), (15443, 91980), (18396, 77215), (22995, 61772), (30660, 46329), (30886, 45990)]