256382010

素因数分解:

$2^1\times 3^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:664

約数の個数: 128

約数和(自身を含む): 729734400

約数和(自身を除く): 473352390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 114, 135, 162, 171, 190, 243, 270, 285, 342, 405, 486, 513, 570, 617, 729, 810, 855, 1026, 1215, 1234, 1458, 1539, 1710, 1851, 2187, 2430, 2565, 3078, 3085, 3645, 3702, 4374, 4617, 5130, 5553, 6170, 7290, 7695, 9234, 9255, 10935, 11106, 11723, 13851, 15390, 16659, 18510, 21870, 23085, 23446, 27702, 27765, 33318, 35169, 41553, 46170, 49977, 55530, 58615, 69255, 70338, 83106, 83295, 99954, 105507, 117230, 138510, 149931, 166590, 175845, 207765, 211014, 249885, 299862, 316521, 351690, 415530, 449793, 499770, 527535, 633042, 749655, 899586, 949563, 1055070, 1349379, 1499310, 1582605, 1899126, 2248965, 2698758, 2848689, 3165210, 4497930, 4747815, 5697378, 6746895, 8546067, 9495630, 13493790, 14243445, 17092134, 25638201, 28486890, 42730335, 51276402, 85460670, 128191005, 256382010]

約数ペア:

[(1, 256382010), (2, 128191005), (3, 85460670), (5, 51276402), (6, 42730335), (9, 28486890), (10, 25638201), (15, 17092134), (18, 14243445), (19, 13493790), (27, 9495630), (30, 8546067), (38, 6746895), (45, 5697378), (54, 4747815), (57, 4497930), (81, 3165210), (90, 2848689), (95, 2698758), (114, 2248965), (135, 1899126), (162, 1582605), (171, 1499310), (190, 1349379), (243, 1055070), (270, 949563), (285, 899586), (342, 749655), (405, 633042), (486, 527535), (513, 499770), (570, 449793), (617, 415530), (729, 351690), (810, 316521), (855, 299862), (1026, 249885), (1215, 211014), (1234, 207765), (1458, 175845), (1539, 166590), (1710, 149931), (1851, 138510), (2187, 117230), (2430, 105507), (2565, 99954), (3078, 83295), (3085, 83106), (3645, 70338), (3702, 69255), (4374, 58615), (4617, 55530), (5130, 49977), (5553, 46170), (6170, 41553), (7290, 35169), (7695, 33318), (9234, 27765), (9255, 27702), (10935, 23446), (11106, 23085), (11723, 21870), (13851, 18510), (15390, 16659)]