81919260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1409}}^1$

素因数の和:1460

約数の個数: 144

約数和(自身を含む): 277149600

約数和(自身を除く): 195230340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 380, 510, 570, 612, 646, 684, 765, 855, 969, 1020, 1140, 1292, 1409, 1530, 1615, 1710, 1938, 2818, 2907, 3060, 3230, 3420, 3876, 4227, 4845, 5636, 5814, 6460, 7045, 8454, 9690, 11628, 12681, 14090, 14535, 16908, 19380, 21135, 23953, 25362, 26771, 28180, 29070, 42270, 47906, 50724, 53542, 58140, 63405, 71859, 80313, 84540, 95812, 107084, 119765, 126810, 133855, 143718, 160626, 215577, 239530, 240939, 253620, 267710, 287436, 321252, 359295, 401565, 431154, 455107, 479060, 481878, 535420, 718590, 803130, 862308, 910214, 963756, 1077885, 1204695, 1365321, 1437180, 1606260, 1820428, 2155770, 2275535, 2409390, 2730642, 4095963, 4311540, 4551070, 4818780, 5461284, 6826605, 8191926, 9102140, 13653210, 16383852, 20479815, 27306420, 40959630, 81919260]

約数ペア:

[(1, 81919260), (2, 40959630), (3, 27306420), (4, 20479815), (5, 16383852), (6, 13653210), (9, 9102140), (10, 8191926), (12, 6826605), (15, 5461284), (17, 4818780), (18, 4551070), (19, 4311540), (20, 4095963), (30, 2730642), (34, 2409390), (36, 2275535), (38, 2155770), (45, 1820428), (51, 1606260), (57, 1437180), (60, 1365321), (68, 1204695), (76, 1077885), (85, 963756), (90, 910214), (95, 862308), (102, 803130), (114, 718590), (153, 535420), (170, 481878), (171, 479060), (180, 455107), (190, 431154), (204, 401565), (228, 359295), (255, 321252), (285, 287436), (306, 267710), (323, 253620), (340, 240939), (342, 239530), (380, 215577), (510, 160626), (570, 143718), (612, 133855), (646, 126810), (684, 119765), (765, 107084), (855, 95812), (969, 84540), (1020, 80313), (1140, 71859), (1292, 63405), (1409, 58140), (1530, 53542), (1615, 50724), (1710, 47906), (1938, 42270), (2818, 29070), (2907, 28180), (3060, 26771), (3230, 25362), (3420, 23953), (3876, 21135), (4227, 19380), (4845, 16908), (5636, 14535), (5814, 14090), (6460, 12681), (7045, 11628), (8454, 9690)]