15838020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 55298880

約数和(自身を除く): 39460860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 421, 495, 570, 627, 660, 684, 836, 842, 855, 990, 1045, 1140, 1254, 1263, 1684, 1710, 1881, 1980, 2090, 2105, 2508, 2526, 3135, 3420, 3762, 3789, 4180, 4210, 4631, 5052, 6270, 6315, 7524, 7578, 7999, 8420, 9262, 9405, 12540, 12630, 13893, 15156, 15998, 18524, 18810, 18945, 23155, 23997, 25260, 27786, 31996, 37620, 37890, 39995, 41679, 46310, 47994, 55572, 69465, 71991, 75780, 79990, 83358, 87989, 92620, 95988, 119985, 138930, 143982, 159980, 166716, 175978, 208395, 239970, 263967, 277860, 287964, 351956, 359955, 416790, 439945, 479940, 527934, 719910, 791901, 833580, 879890, 1055868, 1319835, 1439820, 1583802, 1759780, 2639670, 3167604, 3959505, 5279340, 7919010, 15838020]

約数ペア:

[(1, 15838020), (2, 7919010), (3, 5279340), (4, 3959505), (5, 3167604), (6, 2639670), (9, 1759780), (10, 1583802), (11, 1439820), (12, 1319835), (15, 1055868), (18, 879890), (19, 833580), (20, 791901), (22, 719910), (30, 527934), (33, 479940), (36, 439945), (38, 416790), (44, 359955), (45, 351956), (55, 287964), (57, 277860), (60, 263967), (66, 239970), (76, 208395), (90, 175978), (95, 166716), (99, 159980), (110, 143982), (114, 138930), (132, 119985), (165, 95988), (171, 92620), (180, 87989), (190, 83358), (198, 79990), (209, 75780), (220, 71991), (228, 69465), (285, 55572), (330, 47994), (342, 46310), (380, 41679), (396, 39995), (418, 37890), (421, 37620), (495, 31996), (570, 27786), (627, 25260), (660, 23997), (684, 23155), (836, 18945), (842, 18810), (855, 18524), (990, 15998), (1045, 15156), (1140, 13893), (1254, 12630), (1263, 12540), (1684, 9405), (1710, 9262), (1881, 8420), (1980, 7999), (2090, 7578), (2105, 7524), (2508, 6315), (2526, 6270), (3135, 5052), (3420, 4631), (3762, 4210), (3789, 4180)]