28130240

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5171}}^1$

素因数の和:5205

約数の個数: 56

約数和(自身を含む): 70939152

約数和(自身を除く): 42808912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5171, 5440, 10342, 20684, 25855, 41368, 51710, 82736, 87907, 103420, 165472, 175814, 206840, 330944, 351628, 413680, 439535, 703256, 827360, 879070, 1406512, 1654720, 1758140, 2813024, 3516280, 5626048, 7032560, 14065120, 28130240]

約数ペア:

[(1, 28130240), (2, 14065120), (4, 7032560), (5, 5626048), (8, 3516280), (10, 2813024), (16, 1758140), (17, 1654720), (20, 1406512), (32, 879070), (34, 827360), (40, 703256), (64, 439535), (68, 413680), (80, 351628), (85, 330944), (136, 206840), (160, 175814), (170, 165472), (272, 103420), (320, 87907), (340, 82736), (544, 51710), (680, 41368), (1088, 25855), (1360, 20684), (2720, 10342), (5171, 5440)]