20481012

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1147

約数の個数: 72

約数和(自身を含む): 56565600

約数和(自身を除く): 36084588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 243, 324, 342, 486, 513, 684, 972, 1026, 1109, 1539, 2052, 2218, 3078, 3327, 4436, 4617, 6156, 6654, 9234, 9981, 13308, 18468, 19962, 21071, 29943, 39924, 42142, 59886, 63213, 84284, 89829, 119772, 126426, 179658, 189639, 252852, 269487, 359316, 379278, 538974, 568917, 758556, 1077948, 1137834, 1706751, 2275668, 3413502, 5120253, 6827004, 10240506, 20481012]

約数ペア:

[(1, 20481012), (2, 10240506), (3, 6827004), (4, 5120253), (6, 3413502), (9, 2275668), (12, 1706751), (18, 1137834), (19, 1077948), (27, 758556), (36, 568917), (38, 538974), (54, 379278), (57, 359316), (76, 269487), (81, 252852), (108, 189639), (114, 179658), (162, 126426), (171, 119772), (228, 89829), (243, 84284), (324, 63213), (342, 59886), (486, 42142), (513, 39924), (684, 29943), (972, 21071), (1026, 19962), (1109, 18468), (1539, 13308), (2052, 9981), (2218, 9234), (3078, 6654), (3327, 6156), (4436, 4617)]