261287620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3677}}^1$

素因数の和:3733

約数の個数: 96

約数和(自身を含む): 667336320

約数和(自身を除く): 406048700

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 34, 38, 44, 55, 68, 76, 85, 95, 110, 170, 187, 190, 209, 220, 323, 340, 374, 380, 418, 646, 748, 836, 935, 1045, 1292, 1615, 1870, 2090, 3230, 3553, 3677, 3740, 4180, 6460, 7106, 7354, 14212, 14708, 17765, 18385, 35530, 36770, 40447, 62509, 69863, 71060, 73540, 80894, 125018, 139726, 161788, 202235, 250036, 279452, 312545, 349315, 404470, 625090, 687599, 698630, 768493, 808940, 1187671, 1250180, 1375198, 1397260, 1536986, 2375342, 2750396, 3073972, 3437995, 3842465, 4750684, 5938355, 6875990, 7684930, 11876710, 13064381, 13751980, 15369860, 23753420, 26128762, 52257524, 65321905, 130643810, 261287620]

約数ペア:

[(1, 261287620), (2, 130643810), (4, 65321905), (5, 52257524), (10, 26128762), (11, 23753420), (17, 15369860), (19, 13751980), (20, 13064381), (22, 11876710), (34, 7684930), (38, 6875990), (44, 5938355), (55, 4750684), (68, 3842465), (76, 3437995), (85, 3073972), (95, 2750396), (110, 2375342), (170, 1536986), (187, 1397260), (190, 1375198), (209, 1250180), (220, 1187671), (323, 808940), (340, 768493), (374, 698630), (380, 687599), (418, 625090), (646, 404470), (748, 349315), (836, 312545), (935, 279452), (1045, 250036), (1292, 202235), (1615, 161788), (1870, 139726), (2090, 125018), (3230, 80894), (3553, 73540), (3677, 71060), (3740, 69863), (4180, 62509), (6460, 40447), (7106, 36770), (7354, 35530), (14212, 18385), (14708, 17765)]