20456450980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31069}}^1\times {\mathrm{4703}}^1$

素因数の和:35788

約数の個数: 48

約数和(自身を含む): 49107502080

約数和(自身を除く): 28651051100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4703, 9406, 18812, 23515, 31069, 32921, 47030, 62138, 65842, 94060, 124276, 131684, 155345, 164605, 217483, 310690, 329210, 434966, 621380, 658420, 869932, 1087415, 2174830, 4349660, 146117507, 292235014, 584470028, 730587535, 1022822549, 1461175070, 2045645098, 2922350140, 4091290196, 5114112745, 10228225490, 20456450980]

約数ペア:

[(1, 20456450980), (2, 10228225490), (4, 5114112745), (5, 4091290196), (7, 2922350140), (10, 2045645098), (14, 1461175070), (20, 1022822549), (28, 730587535), (35, 584470028), (70, 292235014), (140, 146117507), (4703, 4349660), (9406, 2174830), (18812, 1087415), (23515, 869932), (31069, 658420), (32921, 621380), (47030, 434966), (62138, 329210), (65842, 310690), (94060, 217483), (124276, 164605), (131684, 155345)]