405797820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20939}}^1$

素因数の和:20987

約数の個数: 96

約数和(自身を含む): 1266451200

約数和(自身を除く): 860653380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1140, 1292, 1615, 1938, 3230, 3876, 4845, 6460, 9690, 19380, 20939, 41878, 62817, 83756, 104695, 125634, 209390, 251268, 314085, 355963, 397841, 418780, 628170, 711926, 795682, 1067889, 1193523, 1256340, 1423852, 1591364, 1779815, 1989205, 2135778, 2387046, 3559630, 3978410, 4271556, 4774092, 5339445, 5967615, 6763297, 7119260, 7956820, 10678890, 11935230, 13526594, 20289891, 21357780, 23870460, 27053188, 33816485, 40579782, 67632970, 81159564, 101449455, 135265940, 202898910, 405797820]

約数ペア:

[(1, 405797820), (2, 202898910), (3, 135265940), (4, 101449455), (5, 81159564), (6, 67632970), (10, 40579782), (12, 33816485), (15, 27053188), (17, 23870460), (19, 21357780), (20, 20289891), (30, 13526594), (34, 11935230), (38, 10678890), (51, 7956820), (57, 7119260), (60, 6763297), (68, 5967615), (76, 5339445), (85, 4774092), (95, 4271556), (102, 3978410), (114, 3559630), (170, 2387046), (190, 2135778), (204, 1989205), (228, 1779815), (255, 1591364), (285, 1423852), (323, 1256340), (340, 1193523), (380, 1067889), (510, 795682), (570, 711926), (646, 628170), (969, 418780), (1020, 397841), (1140, 355963), (1292, 314085), (1615, 251268), (1938, 209390), (3230, 125634), (3876, 104695), (4845, 83756), (6460, 62817), (9690, 41878), (19380, 20939)]