428839120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:561

約数の個数: 120

約数和(自身を含む): 1088501760

約数和(自身を除く): 659662640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 361, 380, 479, 496, 589, 620, 722, 760, 958, 1178, 1240, 1444, 1520, 1805, 1916, 2356, 2395, 2480, 2888, 2945, 3610, 3832, 4712, 4790, 5776, 5890, 7220, 7664, 9101, 9424, 9580, 11191, 11780, 14440, 14849, 18202, 19160, 22382, 23560, 28880, 29698, 36404, 38320, 44764, 45505, 47120, 55955, 59396, 72808, 74245, 89528, 91010, 111910, 118792, 145616, 148490, 172919, 179056, 182020, 223820, 237584, 282131, 296980, 345838, 364040, 447640, 564262, 593960, 691676, 728080, 864595, 895280, 1128524, 1187920, 1383352, 1410655, 1729190, 2257048, 2766704, 2821310, 3458380, 4514096, 5360489, 5642620, 6916760, 10720978, 11285240, 13833520, 21441956, 22570480, 26802445, 42883912, 53604890, 85767824, 107209780, 214419560, 428839120]

約数ペア:

[(1, 428839120), (2, 214419560), (4, 107209780), (5, 85767824), (8, 53604890), (10, 42883912), (16, 26802445), (19, 22570480), (20, 21441956), (31, 13833520), (38, 11285240), (40, 10720978), (62, 6916760), (76, 5642620), (80, 5360489), (95, 4514096), (124, 3458380), (152, 2821310), (155, 2766704), (190, 2257048), (248, 1729190), (304, 1410655), (310, 1383352), (361, 1187920), (380, 1128524), (479, 895280), (496, 864595), (589, 728080), (620, 691676), (722, 593960), (760, 564262), (958, 447640), (1178, 364040), (1240, 345838), (1444, 296980), (1520, 282131), (1805, 237584), (1916, 223820), (2356, 182020), (2395, 179056), (2480, 172919), (2888, 148490), (2945, 145616), (3610, 118792), (3832, 111910), (4712, 91010), (4790, 89528), (5776, 74245), (5890, 72808), (7220, 59396), (7664, 55955), (9101, 47120), (9424, 45505), (9580, 44764), (11191, 38320), (11780, 36404), (14440, 29698), (14849, 28880), (18202, 23560), (19160, 22382)]