21193680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:628

約数の個数: 80

約数和(自身を含む): 66156480

約数和(自身を除く): 44962800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 233, 240, 379, 466, 699, 758, 932, 1137, 1165, 1398, 1516, 1864, 1895, 2274, 2330, 2796, 3032, 3495, 3728, 3790, 4548, 4660, 5592, 5685, 6064, 6990, 7580, 9096, 9320, 11184, 11370, 13980, 15160, 18192, 18640, 22740, 27960, 30320, 45480, 55920, 88307, 90960, 176614, 264921, 353228, 441535, 529842, 706456, 883070, 1059684, 1324605, 1412912, 1766140, 2119368, 2649210, 3532280, 4238736, 5298420, 7064560, 10596840, 21193680]

約数ペア:

[(1, 21193680), (2, 10596840), (3, 7064560), (4, 5298420), (5, 4238736), (6, 3532280), (8, 2649210), (10, 2119368), (12, 1766140), (15, 1412912), (16, 1324605), (20, 1059684), (24, 883070), (30, 706456), (40, 529842), (48, 441535), (60, 353228), (80, 264921), (120, 176614), (233, 90960), (240, 88307), (379, 55920), (466, 45480), (699, 30320), (758, 27960), (932, 22740), (1137, 18640), (1165, 18192), (1398, 15160), (1516, 13980), (1864, 11370), (1895, 11184), (2274, 9320), (2330, 9096), (2796, 7580), (3032, 6990), (3495, 6064), (3728, 5685), (3790, 5592), (4548, 4660)]