119700180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2055

約数の個数: 120

約数和(自身を含む): 385845768

約数和(自身を除く): 266145588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 81, 90, 108, 111, 135, 148, 162, 180, 185, 222, 270, 324, 333, 370, 405, 444, 540, 555, 666, 740, 810, 999, 1110, 1332, 1620, 1665, 1997, 1998, 2220, 2997, 3330, 3994, 3996, 4995, 5991, 5994, 6660, 7988, 9985, 9990, 11982, 11988, 14985, 17973, 19970, 19980, 23964, 29955, 29970, 35946, 39940, 53919, 59910, 59940, 71892, 73889, 89865, 107838, 119820, 147778, 161757, 179730, 215676, 221667, 269595, 295556, 323514, 359460, 369445, 443334, 539190, 647028, 665001, 738890, 808785, 886668, 1078380, 1108335, 1330002, 1477780, 1617570, 1995003, 2216670, 2660004, 3235140, 3325005, 3990006, 4433340, 5985009, 6650010, 7980012, 9975015, 11970018, 13300020, 19950030, 23940036, 29925045, 39900060, 59850090, 119700180]

約数ペア:

[(1, 119700180), (2, 59850090), (3, 39900060), (4, 29925045), (5, 23940036), (6, 19950030), (9, 13300020), (10, 11970018), (12, 9975015), (15, 7980012), (18, 6650010), (20, 5985009), (27, 4433340), (30, 3990006), (36, 3325005), (37, 3235140), (45, 2660004), (54, 2216670), (60, 1995003), (74, 1617570), (81, 1477780), (90, 1330002), (108, 1108335), (111, 1078380), (135, 886668), (148, 808785), (162, 738890), (180, 665001), (185, 647028), (222, 539190), (270, 443334), (324, 369445), (333, 359460), (370, 323514), (405, 295556), (444, 269595), (540, 221667), (555, 215676), (666, 179730), (740, 161757), (810, 147778), (999, 119820), (1110, 107838), (1332, 89865), (1620, 73889), (1665, 71892), (1997, 59940), (1998, 59910), (2220, 53919), (2997, 39940), (3330, 35946), (3994, 29970), (3996, 29955), (4995, 23964), (5991, 19980), (5994, 19970), (6660, 17973), (7988, 14985), (9985, 11988), (9990, 11982)]