178520770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 350156160

約数和(自身を除く): 171635390

約数列:

[1, 2, 5, 10, 19, 38, 61, 73, 95, 122, 146, 190, 211, 305, 365, 422, 610, 730, 1055, 1159, 1387, 2110, 2318, 2774, 4009, 4453, 5795, 6935, 8018, 8906, 11590, 12871, 13870, 15403, 20045, 22265, 25742, 30806, 40090, 44530, 64355, 77015, 84607, 128710, 154030, 169214, 244549, 292657, 423035, 489098, 585314, 846070, 939583, 1222745, 1463285, 1879166, 2445490, 2926570, 4697915, 9395830, 17852077, 35704154, 89260385, 178520770]

約数ペア:

[(1, 178520770), (2, 89260385), (5, 35704154), (10, 17852077), (19, 9395830), (38, 4697915), (61, 2926570), (73, 2445490), (95, 1879166), (122, 1463285), (146, 1222745), (190, 939583), (211, 846070), (305, 585314), (365, 489098), (422, 423035), (610, 292657), (730, 244549), (1055, 169214), (1159, 154030), (1387, 128710), (2110, 84607), (2318, 77015), (2774, 64355), (4009, 44530), (4453, 40090), (5795, 30806), (6935, 25742), (8018, 22265), (8906, 20045), (11590, 15403), (12871, 13870)]