388741680

素因数分解:

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

素因数の和:20025

約数の個数: 120

約数和(自身を含む): 1353944592

約数和(自身を除く): 965202912

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1620, 1944, 2160, 2430, 3240, 3888, 4860, 6480, 9720, 19440, 19997, 39994, 59991, 79988, 99985, 119982, 159976, 179973, 199970, 239964, 299955, 319952, 359946, 399940, 479928, 539919, 599910, 719892, 799880, 899865, 959856, 1079838, 1199820, 1439784, 1599760, 1619757, 1799730, 2159676, 2399640, 2699595, 2879568, 3239514, 3599460, 4319352, 4799280, 4859271, 5399190, 6479028, 7198920, 8098785, 8638704, 9718542, 10798380, 12958056, 14397840, 16197570, 19437084, 21596760, 24296355, 25916112, 32395140, 38874168, 43193520, 48592710, 64790280, 77748336, 97185420, 129580560, 194370840, 388741680]

約数ペア:

[(1, 388741680), (2, 194370840), (3, 129580560), (4, 97185420), (5, 77748336), (6, 64790280), (8, 48592710), (9, 43193520), (10, 38874168), (12, 32395140), (15, 25916112), (16, 24296355), (18, 21596760), (20, 19437084), (24, 16197570), (27, 14397840), (30, 12958056), (36, 10798380), (40, 9718542), (45, 8638704), (48, 8098785), (54, 7198920), (60, 6479028), (72, 5399190), (80, 4859271), (81, 4799280), (90, 4319352), (108, 3599460), (120, 3239514), (135, 2879568), (144, 2699595), (162, 2399640), (180, 2159676), (216, 1799730), (240, 1619757), (243, 1599760), (270, 1439784), (324, 1199820), (360, 1079838), (405, 959856), (432, 899865), (486, 799880), (540, 719892), (648, 599910), (720, 539919), (810, 479928), (972, 399940), (1080, 359946), (1215, 319952), (1296, 299955), (1620, 239964), (1944, 199970), (2160, 179973), (2430, 159976), (3240, 119982), (3888, 99985), (4860, 79988), (6480, 59991), (9720, 39994), (19440, 19997)]