980217520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{4441}}^1$

素因数の和:4574

約数の個数: 80

約数和(自身を含む): 2379490560

約数和(自身を除く): 1399273040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 155, 178, 248, 310, 356, 445, 496, 620, 712, 890, 1240, 1424, 1780, 2480, 2759, 3560, 4441, 5518, 7120, 8882, 11036, 13795, 17764, 22072, 22205, 27590, 35528, 44144, 44410, 55180, 71056, 88820, 110360, 137671, 177640, 220720, 275342, 355280, 395249, 550684, 688355, 790498, 1101368, 1376710, 1580996, 1976245, 2202736, 2753420, 3161992, 3952490, 5506840, 6323984, 7904980, 11013680, 12252719, 15809960, 24505438, 31619920, 49010876, 61263595, 98021752, 122527190, 196043504, 245054380, 490108760, 980217520]

約数ペア:

[(1, 980217520), (2, 490108760), (4, 245054380), (5, 196043504), (8, 122527190), (10, 98021752), (16, 61263595), (20, 49010876), (31, 31619920), (40, 24505438), (62, 15809960), (80, 12252719), (89, 11013680), (124, 7904980), (155, 6323984), (178, 5506840), (248, 3952490), (310, 3161992), (356, 2753420), (445, 2202736), (496, 1976245), (620, 1580996), (712, 1376710), (890, 1101368), (1240, 790498), (1424, 688355), (1780, 550684), (2480, 395249), (2759, 355280), (3560, 275342), (4441, 220720), (5518, 177640), (7120, 137671), (8882, 110360), (11036, 88820), (13795, 71056), (17764, 55180), (22072, 44410), (22205, 44144), (27590, 35528)]