38875140

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 129030720

約数和(自身を除く): 90155580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 285, 324, 342, 380, 405, 421, 486, 513, 540, 570, 684, 810, 842, 855, 972, 1026, 1140, 1215, 1263, 1539, 1620, 1684, 1710, 2052, 2105, 2430, 2526, 2565, 3078, 3420, 3789, 4210, 4617, 4860, 5052, 5130, 6156, 6315, 7578, 7695, 7999, 8420, 9234, 10260, 11367, 12630, 15156, 15390, 15998, 18468, 18945, 22734, 23085, 23997, 25260, 30780, 31996, 34101, 37890, 39995, 45468, 46170, 47994, 56835, 68202, 71991, 75780, 79990, 92340, 95988, 102303, 113670, 119985, 136404, 143982, 159980, 170505, 204606, 215973, 227340, 239970, 287964, 341010, 359955, 409212, 431946, 479940, 511515, 647919, 682020, 719910, 863892, 1023030, 1079865, 1295838, 1439820, 1943757, 2046060, 2159730, 2591676, 3239595, 3887514, 4319460, 6479190, 7775028, 9718785, 12958380, 19437570, 38875140]

約数ペア:

[(1, 38875140), (2, 19437570), (3, 12958380), (4, 9718785), (5, 7775028), (6, 6479190), (9, 4319460), (10, 3887514), (12, 3239595), (15, 2591676), (18, 2159730), (19, 2046060), (20, 1943757), (27, 1439820), (30, 1295838), (36, 1079865), (38, 1023030), (45, 863892), (54, 719910), (57, 682020), (60, 647919), (76, 511515), (81, 479940), (90, 431946), (95, 409212), (108, 359955), (114, 341010), (135, 287964), (162, 239970), (171, 227340), (180, 215973), (190, 204606), (228, 170505), (243, 159980), (270, 143982), (285, 136404), (324, 119985), (342, 113670), (380, 102303), (405, 95988), (421, 92340), (486, 79990), (513, 75780), (540, 71991), (570, 68202), (684, 56835), (810, 47994), (842, 46170), (855, 45468), (972, 39995), (1026, 37890), (1140, 34101), (1215, 31996), (1263, 30780), (1539, 25260), (1620, 23997), (1684, 23085), (1710, 22734), (2052, 18945), (2105, 18468), (2430, 15998), (2526, 15390), (2565, 15156), (3078, 12630), (3420, 11367), (3789, 10260), (4210, 9234), (4617, 8420), (4860, 7999), (5052, 7695), (5130, 7578), (6156, 6315)]