64790280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{19997}}^1$

素因数の和:20020

約数の個数: 80

約数和(自身を含む): 217778220

約数和(自身を除く): 152987940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 19997, 39994, 59991, 79988, 99985, 119982, 159976, 179973, 199970, 239964, 299955, 359946, 399940, 479928, 539919, 599910, 719892, 799880, 899865, 1079838, 1199820, 1439784, 1619757, 1799730, 2159676, 2399640, 2699595, 3239514, 3599460, 4319352, 5399190, 6479028, 7198920, 8098785, 10798380, 12958056, 16197570, 21596760, 32395140, 64790280]

約数ペア:

[(1, 64790280), (2, 32395140), (3, 21596760), (4, 16197570), (5, 12958056), (6, 10798380), (8, 8098785), (9, 7198920), (10, 6479028), (12, 5399190), (15, 4319352), (18, 3599460), (20, 3239514), (24, 2699595), (27, 2399640), (30, 2159676), (36, 1799730), (40, 1619757), (45, 1439784), (54, 1199820), (60, 1079838), (72, 899865), (81, 799880), (90, 719892), (108, 599910), (120, 539919), (135, 479928), (162, 399940), (180, 359946), (216, 299955), (270, 239964), (324, 199970), (360, 179973), (405, 159976), (540, 119982), (648, 99985), (810, 79988), (1080, 59991), (1620, 39994), (3240, 19997)]