20276880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:193

約数の個数: 160

約数和(自身を含む): 69412224

約数和(自身を除く): 49135344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 67, 78, 80, 97, 104, 120, 130, 134, 156, 194, 195, 201, 208, 240, 260, 268, 291, 312, 335, 388, 390, 402, 485, 520, 536, 582, 624, 670, 776, 780, 804, 871, 970, 1005, 1040, 1072, 1164, 1261, 1340, 1455, 1552, 1560, 1608, 1742, 1940, 2010, 2328, 2522, 2613, 2680, 2910, 3120, 3216, 3484, 3783, 3880, 4020, 4355, 4656, 5044, 5226, 5360, 5820, 6305, 6499, 6968, 7566, 7760, 8040, 8710, 10088, 10452, 11640, 12610, 12998, 13065, 13936, 15132, 16080, 17420, 18915, 19497, 20176, 20904, 23280, 25220, 25996, 26130, 30264, 32495, 34840, 37830, 38994, 41808, 50440, 51992, 52260, 60528, 64990, 69680, 75660, 77988, 84487, 97485, 100880, 103984, 104520, 129980, 151320, 155976, 168974, 194970, 209040, 253461, 259960, 302640, 311952, 337948, 389940, 422435, 506922, 519920, 675896, 779880, 844870, 1013844, 1267305, 1351792, 1559760, 1689740, 2027688, 2534610, 3379480, 4055376, 5069220, 6758960, 10138440, 20276880]

約数ペア:

[(1, 20276880), (2, 10138440), (3, 6758960), (4, 5069220), (5, 4055376), (6, 3379480), (8, 2534610), (10, 2027688), (12, 1689740), (13, 1559760), (15, 1351792), (16, 1267305), (20, 1013844), (24, 844870), (26, 779880), (30, 675896), (39, 519920), (40, 506922), (48, 422435), (52, 389940), (60, 337948), (65, 311952), (67, 302640), (78, 259960), (80, 253461), (97, 209040), (104, 194970), (120, 168974), (130, 155976), (134, 151320), (156, 129980), (194, 104520), (195, 103984), (201, 100880), (208, 97485), (240, 84487), (260, 77988), (268, 75660), (291, 69680), (312, 64990), (335, 60528), (388, 52260), (390, 51992), (402, 50440), (485, 41808), (520, 38994), (536, 37830), (582, 34840), (624, 32495), (670, 30264), (776, 26130), (780, 25996), (804, 25220), (871, 23280), (970, 20904), (1005, 20176), (1040, 19497), (1072, 18915), (1164, 17420), (1261, 16080), (1340, 15132), (1455, 13936), (1552, 13065), (1560, 12998), (1608, 12610), (1742, 11640), (1940, 10452), (2010, 10088), (2328, 8710), (2522, 8040), (2613, 7760), (2680, 7566), (2910, 6968), (3120, 6499), (3216, 6305), (3484, 5820), (3783, 5360), (3880, 5226), (4020, 5044), (4355, 4656)]