19992648

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 54331200

約数和(自身を除く): 34338552

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 139, 156, 278, 312, 417, 461, 556, 834, 922, 1112, 1383, 1668, 1807, 1844, 2766, 3336, 3614, 3688, 5421, 5532, 5993, 7228, 10842, 11064, 11986, 14456, 17979, 21684, 23972, 35958, 43368, 47944, 64079, 71916, 128158, 143832, 192237, 256316, 384474, 512632, 768948, 833027, 1537896, 1666054, 2499081, 3332108, 4998162, 6664216, 9996324, 19992648]

約数ペア:

[(1, 19992648), (2, 9996324), (3, 6664216), (4, 4998162), (6, 3332108), (8, 2499081), (12, 1666054), (13, 1537896), (24, 833027), (26, 768948), (39, 512632), (52, 384474), (78, 256316), (104, 192237), (139, 143832), (156, 128158), (278, 71916), (312, 64079), (417, 47944), (461, 43368), (556, 35958), (834, 23972), (922, 21684), (1112, 17979), (1383, 14456), (1668, 11986), (1807, 11064), (1844, 10842), (2766, 7228), (3336, 5993), (3614, 5532), (3688, 5421)]