1809502020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{2801}}^1$

素因数の和:2950

約数の個数: 144

約数和(自身を含む): 5697317808

約数和(自身を除く): 3887815788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 97, 111, 148, 180, 185, 194, 222, 291, 333, 370, 388, 444, 485, 555, 582, 666, 740, 873, 970, 1110, 1164, 1332, 1455, 1665, 1746, 1940, 2220, 2801, 2910, 3330, 3492, 3589, 4365, 5602, 5820, 6660, 7178, 8403, 8730, 10767, 11204, 14005, 14356, 16806, 17460, 17945, 21534, 25209, 28010, 32301, 33612, 35890, 42015, 43068, 50418, 53835, 56020, 64602, 71780, 84030, 100836, 103637, 107670, 126045, 129204, 161505, 168060, 207274, 215340, 252090, 271697, 310911, 323010, 414548, 504180, 518185, 543394, 621822, 646020, 815091, 932733, 1036370, 1086788, 1243644, 1358485, 1554555, 1630182, 1865466, 2072740, 2445273, 2716970, 3109110, 3260364, 3730932, 4075455, 4663665, 4890546, 5433940, 6218220, 8150910, 9327330, 9781092, 10052789, 12226365, 16301820, 18654660, 20105578, 24452730, 30158367, 40211156, 48905460, 50263945, 60316734, 90475101, 100527890, 120633468, 150791835, 180950202, 201055780, 301583670, 361900404, 452375505, 603167340, 904751010, 1809502020]

約数ペア:

[(1, 1809502020), (2, 904751010), (3, 603167340), (4, 452375505), (5, 361900404), (6, 301583670), (9, 201055780), (10, 180950202), (12, 150791835), (15, 120633468), (18, 100527890), (20, 90475101), (30, 60316734), (36, 50263945), (37, 48905460), (45, 40211156), (60, 30158367), (74, 24452730), (90, 20105578), (97, 18654660), (111, 16301820), (148, 12226365), (180, 10052789), (185, 9781092), (194, 9327330), (222, 8150910), (291, 6218220), (333, 5433940), (370, 4890546), (388, 4663665), (444, 4075455), (485, 3730932), (555, 3260364), (582, 3109110), (666, 2716970), (740, 2445273), (873, 2072740), (970, 1865466), (1110, 1630182), (1164, 1554555), (1332, 1358485), (1455, 1243644), (1665, 1086788), (1746, 1036370), (1940, 932733), (2220, 815091), (2801, 646020), (2910, 621822), (3330, 543394), (3492, 518185), (3589, 504180), (4365, 414548), (5602, 323010), (5820, 310911), (6660, 271697), (7178, 252090), (8403, 215340), (8730, 207274), (10767, 168060), (11204, 161505), (14005, 129204), (14356, 126045), (16806, 107670), (17460, 103637), (17945, 100836), (21534, 84030), (25209, 71780), (28010, 64602), (32301, 56020), (33612, 53835), (35890, 50418), (42015, 43068)]