39982020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3943}}^1$

素因数の和:3981

約数の個数: 72

約数和(自身を含む): 121254336

約数和(自身を除く): 81272316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 3943, 5070, 7886, 10140, 11829, 15772, 19715, 23658, 39430, 47316, 51259, 59145, 78860, 102518, 118290, 153777, 205036, 236580, 256295, 307554, 512590, 615108, 666367, 768885, 1025180, 1332734, 1537770, 1999101, 2665468, 3075540, 3331835, 3998202, 6663670, 7996404, 9995505, 13327340, 19991010, 39982020]

約数ペア:

[(1, 39982020), (2, 19991010), (3, 13327340), (4, 9995505), (5, 7996404), (6, 6663670), (10, 3998202), (12, 3331835), (13, 3075540), (15, 2665468), (20, 1999101), (26, 1537770), (30, 1332734), (39, 1025180), (52, 768885), (60, 666367), (65, 615108), (78, 512590), (130, 307554), (156, 256295), (169, 236580), (195, 205036), (260, 153777), (338, 118290), (390, 102518), (507, 78860), (676, 59145), (780, 51259), (845, 47316), (1014, 39430), (1690, 23658), (2028, 19715), (2535, 15772), (3380, 11829), (3943, 10140), (5070, 7886)]