20281512

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 54144000

約数和(自身を除く): 33862488

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 79, 114, 152, 158, 228, 237, 316, 456, 474, 563, 632, 948, 1126, 1501, 1689, 1896, 2252, 3002, 3378, 4503, 4504, 6004, 6756, 9006, 10697, 12008, 13512, 18012, 21394, 32091, 36024, 42788, 44477, 64182, 85576, 88954, 128364, 133431, 177908, 256728, 266862, 355816, 533724, 845063, 1067448, 1690126, 2535189, 3380252, 5070378, 6760504, 10140756, 20281512]

約数ペア:

[(1, 20281512), (2, 10140756), (3, 6760504), (4, 5070378), (6, 3380252), (8, 2535189), (12, 1690126), (19, 1067448), (24, 845063), (38, 533724), (57, 355816), (76, 266862), (79, 256728), (114, 177908), (152, 133431), (158, 128364), (228, 88954), (237, 85576), (316, 64182), (456, 44477), (474, 42788), (563, 36024), (632, 32091), (948, 21394), (1126, 18012), (1501, 13512), (1689, 12008), (1896, 10697), (2252, 9006), (3002, 6756), (3378, 6004), (4503, 4504)]