28005840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{401}}^1$

素因数の和:517

約数の個数: 120

約数和(自身を含む): 95259528

約数和(自身を除く): 67253688

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 97, 120, 144, 180, 194, 240, 291, 360, 388, 401, 485, 582, 720, 776, 802, 873, 970, 1164, 1203, 1455, 1552, 1604, 1746, 1940, 2005, 2328, 2406, 2910, 3208, 3492, 3609, 3880, 4010, 4365, 4656, 4812, 5820, 6015, 6416, 6984, 7218, 7760, 8020, 8730, 9624, 11640, 12030, 13968, 14436, 16040, 17460, 18045, 19248, 23280, 24060, 28872, 32080, 34920, 36090, 38897, 48120, 57744, 69840, 72180, 77794, 96240, 116691, 144360, 155588, 194485, 233382, 288720, 311176, 350073, 388970, 466764, 583455, 622352, 700146, 777940, 933528, 1166910, 1400292, 1555880, 1750365, 1867056, 2333820, 2800584, 3111760, 3500730, 4667640, 5601168, 7001460, 9335280, 14002920, 28005840]

約数ペア:

[(1, 28005840), (2, 14002920), (3, 9335280), (4, 7001460), (5, 5601168), (6, 4667640), (8, 3500730), (9, 3111760), (10, 2800584), (12, 2333820), (15, 1867056), (16, 1750365), (18, 1555880), (20, 1400292), (24, 1166910), (30, 933528), (36, 777940), (40, 700146), (45, 622352), (48, 583455), (60, 466764), (72, 388970), (80, 350073), (90, 311176), (97, 288720), (120, 233382), (144, 194485), (180, 155588), (194, 144360), (240, 116691), (291, 96240), (360, 77794), (388, 72180), (401, 69840), (485, 57744), (582, 48120), (720, 38897), (776, 36090), (802, 34920), (873, 32080), (970, 28872), (1164, 24060), (1203, 23280), (1455, 19248), (1552, 18045), (1604, 17460), (1746, 16040), (1940, 14436), (2005, 13968), (2328, 12030), (2406, 11640), (2910, 9624), (3208, 8730), (3492, 8020), (3609, 7760), (3880, 7218), (4010, 6984), (4365, 6416), (4656, 6015), (4812, 5820)]