20509140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20107}}^1$

素因数の和:20136

約数の個数: 48

約数和(自身を含む): 60806592

約数和(自身を除く): 40297452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20107, 40214, 60321, 80428, 100535, 120642, 201070, 241284, 301605, 341819, 402140, 603210, 683638, 1025457, 1206420, 1367276, 1709095, 2050914, 3418190, 4101828, 5127285, 6836380, 10254570, 20509140]

約数ペア:

[(1, 20509140), (2, 10254570), (3, 6836380), (4, 5127285), (5, 4101828), (6, 3418190), (10, 2050914), (12, 1709095), (15, 1367276), (17, 1206420), (20, 1025457), (30, 683638), (34, 603210), (51, 402140), (60, 341819), (68, 301605), (85, 241284), (102, 201070), (170, 120642), (204, 100535), (255, 80428), (340, 60321), (510, 40214), (1020, 20107)]