281122020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:434

約数の個数: 144

約数和(自身を含む): 879016320

約数和(自身を除く): 597894300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 103, 118, 177, 180, 206, 236, 257, 295, 309, 354, 412, 514, 515, 531, 590, 618, 708, 771, 885, 927, 1028, 1030, 1062, 1180, 1236, 1285, 1542, 1545, 1770, 1854, 2060, 2124, 2313, 2570, 2655, 3084, 3090, 3540, 3708, 3855, 4626, 4635, 5140, 5310, 6077, 6180, 7710, 9252, 9270, 10620, 11565, 12154, 15163, 15420, 18231, 18540, 23130, 24308, 26471, 30326, 30385, 36462, 45489, 46260, 52942, 54693, 60652, 60770, 72924, 75815, 79413, 90978, 91155, 105884, 109386, 121540, 132355, 136467, 151630, 158826, 181956, 182310, 218772, 227445, 238239, 264710, 272934, 273465, 303260, 317652, 364620, 397065, 454890, 476478, 529420, 545868, 546930, 682335, 794130, 909780, 952956, 1093860, 1191195, 1364670, 1561789, 1588260, 2382390, 2729340, 3123578, 4685367, 4764780, 6247156, 7808945, 9370734, 14056101, 15617890, 18741468, 23426835, 28112202, 31235780, 46853670, 56224404, 70280505, 93707340, 140561010, 281122020]

約数ペア:

[(1, 281122020), (2, 140561010), (3, 93707340), (4, 70280505), (5, 56224404), (6, 46853670), (9, 31235780), (10, 28112202), (12, 23426835), (15, 18741468), (18, 15617890), (20, 14056101), (30, 9370734), (36, 7808945), (45, 6247156), (59, 4764780), (60, 4685367), (90, 3123578), (103, 2729340), (118, 2382390), (177, 1588260), (180, 1561789), (206, 1364670), (236, 1191195), (257, 1093860), (295, 952956), (309, 909780), (354, 794130), (412, 682335), (514, 546930), (515, 545868), (531, 529420), (590, 476478), (618, 454890), (708, 397065), (771, 364620), (885, 317652), (927, 303260), (1028, 273465), (1030, 272934), (1062, 264710), (1180, 238239), (1236, 227445), (1285, 218772), (1542, 182310), (1545, 181956), (1770, 158826), (1854, 151630), (2060, 136467), (2124, 132355), (2313, 121540), (2570, 109386), (2655, 105884), (3084, 91155), (3090, 90978), (3540, 79413), (3708, 75815), (3855, 72924), (4626, 60770), (4635, 60652), (5140, 54693), (5310, 52942), (6077, 46260), (6180, 45489), (7710, 36462), (9252, 30385), (9270, 30326), (10620, 26471), (11565, 24308), (12154, 23130), (15163, 18540), (15420, 18231)]