251720820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1109}}^1$

素因数の和:1234

約数の個数: 144

約数和(自身を含む): 831514320

約数和(自身を除く): 579793500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 97, 117, 130, 156, 180, 194, 195, 234, 260, 291, 388, 390, 468, 485, 582, 585, 780, 873, 970, 1109, 1164, 1170, 1261, 1455, 1746, 1940, 2218, 2340, 2522, 2910, 3327, 3492, 3783, 4365, 4436, 5044, 5545, 5820, 6305, 6654, 7566, 8730, 9981, 11090, 11349, 12610, 13308, 14417, 15132, 16635, 17460, 18915, 19962, 22180, 22698, 25220, 28834, 33270, 37830, 39924, 43251, 45396, 49905, 56745, 57668, 66540, 72085, 75660, 86502, 99810, 107573, 113490, 129753, 144170, 173004, 199620, 215146, 216255, 226980, 259506, 288340, 322719, 430292, 432510, 519012, 537865, 645438, 648765, 865020, 968157, 1075730, 1290876, 1297530, 1398449, 1613595, 1936314, 2151460, 2595060, 2796898, 3227190, 3872628, 4195347, 4840785, 5593796, 6454380, 6992245, 8390694, 9681570, 12586041, 13984490, 16781388, 19363140, 20976735, 25172082, 27968980, 41953470, 50344164, 62930205, 83906940, 125860410, 251720820]

約数ペア:

[(1, 251720820), (2, 125860410), (3, 83906940), (4, 62930205), (5, 50344164), (6, 41953470), (9, 27968980), (10, 25172082), (12, 20976735), (13, 19363140), (15, 16781388), (18, 13984490), (20, 12586041), (26, 9681570), (30, 8390694), (36, 6992245), (39, 6454380), (45, 5593796), (52, 4840785), (60, 4195347), (65, 3872628), (78, 3227190), (90, 2796898), (97, 2595060), (117, 2151460), (130, 1936314), (156, 1613595), (180, 1398449), (194, 1297530), (195, 1290876), (234, 1075730), (260, 968157), (291, 865020), (388, 648765), (390, 645438), (468, 537865), (485, 519012), (582, 432510), (585, 430292), (780, 322719), (873, 288340), (970, 259506), (1109, 226980), (1164, 216255), (1170, 215146), (1261, 199620), (1455, 173004), (1746, 144170), (1940, 129753), (2218, 113490), (2340, 107573), (2522, 99810), (2910, 86502), (3327, 75660), (3492, 72085), (3783, 66540), (4365, 57668), (4436, 56745), (5044, 49905), (5545, 45396), (5820, 43251), (6305, 39924), (6654, 37830), (7566, 33270), (8730, 28834), (9981, 25220), (11090, 22698), (11349, 22180), (12610, 19962), (13308, 18915), (14417, 17460), (15132, 16635)]