19520904

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 57456000

約数和(自身を除く): 37935096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 37, 38, 39, 52, 57, 74, 76, 78, 89, 104, 111, 114, 148, 152, 156, 178, 222, 228, 247, 267, 296, 312, 356, 444, 456, 481, 494, 534, 703, 712, 741, 888, 962, 988, 1068, 1157, 1406, 1443, 1482, 1691, 1924, 1976, 2109, 2136, 2314, 2812, 2886, 2964, 3293, 3382, 3471, 3848, 4218, 4628, 5073, 5624, 5772, 5928, 6586, 6764, 6942, 8436, 9139, 9256, 9879, 10146, 11544, 13172, 13528, 13884, 16872, 18278, 19758, 20292, 21983, 26344, 27417, 27768, 36556, 39516, 40584, 42809, 43966, 54834, 62567, 65949, 73112, 79032, 85618, 87932, 109668, 125134, 128427, 131898, 171236, 175864, 187701, 219336, 250268, 256854, 263796, 342472, 375402, 500536, 513708, 527592, 750804, 813371, 1027416, 1501608, 1626742, 2440113, 3253484, 4880226, 6506968, 9760452, 19520904]

約数ペア:

[(1, 19520904), (2, 9760452), (3, 6506968), (4, 4880226), (6, 3253484), (8, 2440113), (12, 1626742), (13, 1501608), (19, 1027416), (24, 813371), (26, 750804), (37, 527592), (38, 513708), (39, 500536), (52, 375402), (57, 342472), (74, 263796), (76, 256854), (78, 250268), (89, 219336), (104, 187701), (111, 175864), (114, 171236), (148, 131898), (152, 128427), (156, 125134), (178, 109668), (222, 87932), (228, 85618), (247, 79032), (267, 73112), (296, 65949), (312, 62567), (356, 54834), (444, 43966), (456, 42809), (481, 40584), (494, 39516), (534, 36556), (703, 27768), (712, 27417), (741, 26344), (888, 21983), (962, 20292), (988, 19758), (1068, 18278), (1157, 16872), (1406, 13884), (1443, 13528), (1482, 13172), (1691, 11544), (1924, 10146), (1976, 9879), (2109, 9256), (2136, 9139), (2314, 8436), (2812, 6942), (2886, 6764), (2964, 6586), (3293, 5928), (3382, 5772), (3471, 5624), (3848, 5073), (4218, 4628)]