19805462638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:638

約数の個数: 96

約数和(自身を含む): 35382650688

約数和(自身を除く): 15577188050

約数列:

[1, 2, 13, 17, 26, 34, 37, 71, 74, 142, 221, 442, 461, 481, 629, 922, 923, 962, 1207, 1258, 1369, 1846, 2414, 2627, 2738, 5254, 5993, 7837, 8177, 11986, 15674, 15691, 16354, 17057, 17797, 23273, 31382, 32731, 34114, 34151, 35594, 44659, 46546, 65462, 68302, 89318, 97199, 101881, 194398, 203762, 221741, 289969, 302549, 425503, 443482, 556427, 579938, 580567, 605098, 631109, 851006, 1112854, 1161134, 1211047, 1262218, 1263587, 1652383, 2422094, 2527174, 3304766, 3769597, 7233551, 7539194, 8204417, 10728853, 14467102, 15743611, 16408834, 20587799, 21457706, 21480979, 31487222, 41175598, 42961958, 44808739, 89617478, 139475089, 267641387, 278950178, 535282774, 582513607, 761748563, 1165027214, 1523497126, 9902731319, 19805462638]

約数ペア:

[(1, 19805462638), (2, 9902731319), (13, 1523497126), (17, 1165027214), (26, 761748563), (34, 582513607), (37, 535282774), (71, 278950178), (74, 267641387), (142, 139475089), (221, 89617478), (442, 44808739), (461, 42961958), (481, 41175598), (629, 31487222), (922, 21480979), (923, 21457706), (962, 20587799), (1207, 16408834), (1258, 15743611), (1369, 14467102), (1846, 10728853), (2414, 8204417), (2627, 7539194), (2738, 7233551), (5254, 3769597), (5993, 3304766), (7837, 2527174), (8177, 2422094), (11986, 1652383), (15674, 1263587), (15691, 1262218), (16354, 1211047), (17057, 1161134), (17797, 1112854), (23273, 851006), (31382, 631109), (32731, 605098), (34114, 580567), (34151, 579938), (35594, 556427), (44659, 443482), (46546, 425503), (65462, 302549), (68302, 289969), (89318, 221741), (97199, 203762), (101881, 194398)]