20744760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10169}}^1$

素因数の和:10200

約数の個数: 64

約数和(自身を含む): 65901600

約数和(自身を除く): 45156840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10169, 20338, 30507, 40676, 50845, 61014, 81352, 101690, 122028, 152535, 172873, 203380, 244056, 305070, 345746, 406760, 518619, 610140, 691492, 864365, 1037238, 1220280, 1382984, 1728730, 2074476, 2593095, 3457460, 4148952, 5186190, 6914920, 10372380, 20744760]

約数ペア:

[(1, 20744760), (2, 10372380), (3, 6914920), (4, 5186190), (5, 4148952), (6, 3457460), (8, 2593095), (10, 2074476), (12, 1728730), (15, 1382984), (17, 1220280), (20, 1037238), (24, 864365), (30, 691492), (34, 610140), (40, 518619), (51, 406760), (60, 345746), (68, 305070), (85, 244056), (102, 203380), (120, 172873), (136, 152535), (170, 122028), (204, 101690), (255, 81352), (340, 61014), (408, 50845), (510, 40676), (680, 30507), (1020, 20338), (2040, 10169)]