65600000020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{757}}^1\times {\mathrm{2351}}^1$

素因数の和:3233

約数の個数: 96

約数和(自身を含む): 146761413120

約数和(自身を除く): 81161413100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 757, 970, 1514, 1843, 1940, 2351, 3028, 3686, 3785, 4702, 7372, 7570, 9215, 9404, 11755, 14383, 15140, 18430, 23510, 28766, 36860, 44669, 47020, 57532, 71915, 73429, 89338, 143830, 146858, 178676, 223345, 228047, 287660, 293716, 367145, 446690, 456094, 734290, 893380, 912188, 1140235, 1395151, 1468580, 1779707, 2280470, 2790302, 3559414, 4332893, 4560940, 5580604, 6975755, 7118828, 8665786, 8898535, 13951510, 17331572, 17797070, 21664465, 27903020, 33814433, 35594140, 43328930, 67628866, 86657860, 135257732, 169072165, 172631579, 338144330, 345263158, 676288660, 690526316, 863157895, 1726315790, 3280000001, 3452631580, 6560000002, 13120000004, 16400000005, 32800000010, 65600000020]

約数ペア:

[(1, 65600000020), (2, 32800000010), (4, 16400000005), (5, 13120000004), (10, 6560000002), (19, 3452631580), (20, 3280000001), (38, 1726315790), (76, 863157895), (95, 690526316), (97, 676288660), (190, 345263158), (194, 338144330), (380, 172631579), (388, 169072165), (485, 135257732), (757, 86657860), (970, 67628866), (1514, 43328930), (1843, 35594140), (1940, 33814433), (2351, 27903020), (3028, 21664465), (3686, 17797070), (3785, 17331572), (4702, 13951510), (7372, 8898535), (7570, 8665786), (9215, 7118828), (9404, 6975755), (11755, 5580604), (14383, 4560940), (15140, 4332893), (18430, 3559414), (23510, 2790302), (28766, 2280470), (36860, 1779707), (44669, 1468580), (47020, 1395151), (57532, 1140235), (71915, 912188), (73429, 893380), (89338, 734290), (143830, 456094), (146858, 446690), (178676, 367145), (223345, 293716), (228047, 287660)]