172421380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 391974912

約数和(自身を除く): 219553532

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 61, 62, 94, 97, 122, 124, 155, 188, 194, 235, 244, 305, 310, 388, 470, 485, 610, 620, 940, 970, 1220, 1457, 1891, 1940, 2867, 2914, 3007, 3782, 4559, 5734, 5828, 5917, 6014, 7285, 7564, 9118, 9455, 11468, 11834, 12028, 14335, 14570, 15035, 18236, 18910, 22795, 23668, 28670, 29140, 29585, 30070, 37820, 45590, 57340, 59170, 60140, 88877, 91180, 118340, 141329, 177754, 183427, 278099, 282658, 355508, 366854, 444385, 556198, 565316, 706645, 733708, 888770, 917135, 1112396, 1390495, 1413290, 1777540, 1834270, 2780990, 2826580, 3668540, 5561980, 8621069, 17242138, 34484276, 43105345, 86210690, 172421380]

約数ペア:

[(1, 172421380), (2, 86210690), (4, 43105345), (5, 34484276), (10, 17242138), (20, 8621069), (31, 5561980), (47, 3668540), (61, 2826580), (62, 2780990), (94, 1834270), (97, 1777540), (122, 1413290), (124, 1390495), (155, 1112396), (188, 917135), (194, 888770), (235, 733708), (244, 706645), (305, 565316), (310, 556198), (388, 444385), (470, 366854), (485, 355508), (610, 282658), (620, 278099), (940, 183427), (970, 177754), (1220, 141329), (1457, 118340), (1891, 91180), (1940, 88877), (2867, 60140), (2914, 59170), (3007, 57340), (3782, 45590), (4559, 37820), (5734, 30070), (5828, 29585), (5917, 29140), (6014, 28670), (7285, 23668), (7564, 22795), (9118, 18910), (9455, 18236), (11468, 15035), (11834, 14570), (12028, 14335)]