19752180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:509

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 44114700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 131, 140, 210, 262, 359, 393, 420, 524, 655, 718, 786, 917, 1077, 1310, 1436, 1572, 1795, 1834, 1965, 2154, 2513, 2620, 2751, 3590, 3668, 3930, 4308, 4585, 5026, 5385, 5502, 7180, 7539, 7860, 9170, 10052, 10770, 11004, 12565, 13755, 15078, 18340, 21540, 25130, 27510, 30156, 37695, 47029, 50260, 55020, 75390, 94058, 141087, 150780, 188116, 235145, 282174, 329203, 470290, 564348, 658406, 705435, 940580, 987609, 1316812, 1410870, 1646015, 1975218, 2821740, 3292030, 3950436, 4938045, 6584060, 9876090, 19752180]

約数ペア:

[(1, 19752180), (2, 9876090), (3, 6584060), (4, 4938045), (5, 3950436), (6, 3292030), (7, 2821740), (10, 1975218), (12, 1646015), (14, 1410870), (15, 1316812), (20, 987609), (21, 940580), (28, 705435), (30, 658406), (35, 564348), (42, 470290), (60, 329203), (70, 282174), (84, 235145), (105, 188116), (131, 150780), (140, 141087), (210, 94058), (262, 75390), (359, 55020), (393, 50260), (420, 47029), (524, 37695), (655, 30156), (718, 27510), (786, 25130), (917, 21540), (1077, 18340), (1310, 15078), (1436, 13755), (1572, 12565), (1795, 11004), (1834, 10770), (1965, 10052), (2154, 9170), (2513, 7860), (2620, 7539), (2751, 7180), (3590, 5502), (3668, 5385), (3930, 5026), (4308, 4585)]