77881980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{599}}^1$

素因数の和:819

約数の個数: 96

約数和(自身を含む): 239500800

約数和(自身を除く): 161618820

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 197, 220, 330, 394, 591, 599, 660, 788, 985, 1182, 1198, 1797, 1970, 2167, 2364, 2396, 2955, 2995, 3594, 3940, 4334, 5910, 5990, 6501, 6589, 7188, 8668, 8985, 10835, 11820, 11980, 13002, 13178, 17970, 19767, 21670, 26004, 26356, 32505, 32945, 35940, 39534, 43340, 65010, 65890, 79068, 98835, 118003, 130020, 131780, 197670, 236006, 354009, 395340, 472012, 590015, 708018, 1180030, 1298033, 1416036, 1770045, 2360060, 2596066, 3540090, 3894099, 5192132, 6490165, 7080180, 7788198, 12980330, 15576396, 19470495, 25960660, 38940990, 77881980]

約数ペア:

[(1, 77881980), (2, 38940990), (3, 25960660), (4, 19470495), (5, 15576396), (6, 12980330), (10, 7788198), (11, 7080180), (12, 6490165), (15, 5192132), (20, 3894099), (22, 3540090), (30, 2596066), (33, 2360060), (44, 1770045), (55, 1416036), (60, 1298033), (66, 1180030), (110, 708018), (132, 590015), (165, 472012), (197, 395340), (220, 354009), (330, 236006), (394, 197670), (591, 131780), (599, 130020), (660, 118003), (788, 98835), (985, 79068), (1182, 65890), (1198, 65010), (1797, 43340), (1970, 39534), (2167, 35940), (2364, 32945), (2396, 32505), (2955, 26356), (2995, 26004), (3594, 21670), (3940, 19767), (4334, 17970), (5910, 13178), (5990, 13002), (6501, 11980), (6589, 11820), (7188, 10835), (8668, 8985)]