661409532

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{138139}}^1$

素因数の和:138175

約数の個数: 72

約数和(自身を含む): 2011318400

約数和(自身を除く): 1349908868

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 252, 266, 342, 399, 532, 684, 798, 1197, 1596, 2394, 4788, 138139, 276278, 414417, 552556, 828834, 966973, 1243251, 1657668, 1933946, 2486502, 2624641, 2900919, 3867892, 4973004, 5249282, 5801838, 7873923, 8702757, 10498564, 11603676, 15747846, 17405514, 18372487, 23621769, 31495692, 34811028, 36744974, 47243538, 55117461, 73489948, 94487076, 110234922, 165352383, 220469844, 330704766, 661409532]

約数ペア:

[(1, 661409532), (2, 330704766), (3, 220469844), (4, 165352383), (6, 110234922), (7, 94487076), (9, 73489948), (12, 55117461), (14, 47243538), (18, 36744974), (19, 34811028), (21, 31495692), (28, 23621769), (36, 18372487), (38, 17405514), (42, 15747846), (57, 11603676), (63, 10498564), (76, 8702757), (84, 7873923), (114, 5801838), (126, 5249282), (133, 4973004), (171, 3867892), (228, 2900919), (252, 2624641), (266, 2486502), (342, 1933946), (399, 1657668), (532, 1243251), (684, 966973), (798, 828834), (1197, 552556), (1596, 414417), (2394, 276278), (4788, 138139)]