18168780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 58705920

約数和(自身を除く): 40537140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 181, 210, 239, 362, 420, 478, 543, 717, 724, 905, 956, 1086, 1195, 1267, 1434, 1673, 1810, 2172, 2390, 2534, 2715, 2868, 3346, 3585, 3620, 3801, 4780, 5019, 5068, 5430, 6335, 6692, 7170, 7602, 8365, 10038, 10860, 12670, 14340, 15204, 16730, 19005, 20076, 25095, 25340, 33460, 38010, 43259, 50190, 76020, 86518, 100380, 129777, 173036, 216295, 259554, 302813, 432590, 519108, 605626, 648885, 865180, 908439, 1211252, 1297770, 1514065, 1816878, 2595540, 3028130, 3633756, 4542195, 6056260, 9084390, 18168780]

約数ペア:

[(1, 18168780), (2, 9084390), (3, 6056260), (4, 4542195), (5, 3633756), (6, 3028130), (7, 2595540), (10, 1816878), (12, 1514065), (14, 1297770), (15, 1211252), (20, 908439), (21, 865180), (28, 648885), (30, 605626), (35, 519108), (42, 432590), (60, 302813), (70, 259554), (84, 216295), (105, 173036), (140, 129777), (181, 100380), (210, 86518), (239, 76020), (362, 50190), (420, 43259), (478, 38010), (543, 33460), (717, 25340), (724, 25095), (905, 20076), (956, 19005), (1086, 16730), (1195, 15204), (1267, 14340), (1434, 12670), (1673, 10860), (1810, 10038), (2172, 8365), (2390, 7602), (2534, 7170), (2715, 6692), (2868, 6335), (3346, 5430), (3585, 5068), (3620, 5019), (3801, 4780)]