253390020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1993}}^1$

素因数の和:2181

約数の個数: 96

約数和(自身を含む): 769141632

約数和(自身を除く): 515751612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 163, 195, 260, 326, 390, 489, 652, 780, 815, 978, 1630, 1956, 1993, 2119, 2445, 3260, 3986, 4238, 4890, 5979, 6357, 7972, 8476, 9780, 9965, 10595, 11958, 12714, 19930, 21190, 23916, 25428, 25909, 29895, 31785, 39860, 42380, 51818, 59790, 63570, 77727, 103636, 119580, 127140, 129545, 155454, 259090, 310908, 324859, 388635, 518180, 649718, 777270, 974577, 1299436, 1554540, 1624295, 1949154, 3248590, 3898308, 4223167, 4872885, 6497180, 8446334, 9745770, 12669501, 16892668, 19491540, 21115835, 25339002, 42231670, 50678004, 63347505, 84463340, 126695010, 253390020]

約数ペア:

[(1, 253390020), (2, 126695010), (3, 84463340), (4, 63347505), (5, 50678004), (6, 42231670), (10, 25339002), (12, 21115835), (13, 19491540), (15, 16892668), (20, 12669501), (26, 9745770), (30, 8446334), (39, 6497180), (52, 4872885), (60, 4223167), (65, 3898308), (78, 3248590), (130, 1949154), (156, 1624295), (163, 1554540), (195, 1299436), (260, 974577), (326, 777270), (390, 649718), (489, 518180), (652, 388635), (780, 324859), (815, 310908), (978, 259090), (1630, 155454), (1956, 129545), (1993, 127140), (2119, 119580), (2445, 103636), (3260, 77727), (3986, 63570), (4238, 59790), (4890, 51818), (5979, 42380), (6357, 39860), (7972, 31785), (8476, 29895), (9780, 25909), (9965, 25428), (10595, 23916), (11958, 21190), (12714, 19930)]