1900805580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1\times {\mathrm{811}}^1$

素因数の和:1304

約数の個数: 144

約数和(自身を含む): 5985252000

約数和(自身を除く): 4084446420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 449, 522, 580, 811, 870, 898, 1044, 1305, 1347, 1622, 1740, 1796, 2245, 2433, 2610, 2694, 3244, 4041, 4055, 4490, 4866, 5220, 5388, 6735, 7299, 8082, 8110, 8980, 9732, 12165, 13021, 13470, 14598, 16164, 16220, 20205, 23519, 24330, 26042, 26940, 29196, 36495, 39063, 40410, 47038, 48660, 52084, 65105, 70557, 72990, 78126, 80820, 94076, 117189, 117595, 130210, 141114, 145980, 156252, 195315, 211671, 234378, 235190, 260420, 282228, 352785, 364139, 390630, 423342, 468756, 470380, 585945, 705570, 728278, 781260, 846684, 1058355, 1092417, 1171890, 1411140, 1456556, 1820695, 2116710, 2184834, 2343780, 3277251, 3641390, 4233420, 4369668, 5462085, 6554502, 7282780, 10560031, 10924170, 13109004, 16386255, 21120062, 21848340, 31680093, 32772510, 42240124, 52800155, 63360186, 65545020, 95040279, 105600310, 126720372, 158400465, 190080558, 211200620, 316800930, 380161116, 475201395, 633601860, 950402790, 1900805580]

約数ペア:

[(1, 1900805580), (2, 950402790), (3, 633601860), (4, 475201395), (5, 380161116), (6, 316800930), (9, 211200620), (10, 190080558), (12, 158400465), (15, 126720372), (18, 105600310), (20, 95040279), (29, 65545020), (30, 63360186), (36, 52800155), (45, 42240124), (58, 32772510), (60, 31680093), (87, 21848340), (90, 21120062), (116, 16386255), (145, 13109004), (174, 10924170), (180, 10560031), (261, 7282780), (290, 6554502), (348, 5462085), (435, 4369668), (449, 4233420), (522, 3641390), (580, 3277251), (811, 2343780), (870, 2184834), (898, 2116710), (1044, 1820695), (1305, 1456556), (1347, 1411140), (1622, 1171890), (1740, 1092417), (1796, 1058355), (2245, 846684), (2433, 781260), (2610, 728278), (2694, 705570), (3244, 585945), (4041, 470380), (4055, 468756), (4490, 423342), (4866, 390630), (5220, 364139), (5388, 352785), (6735, 282228), (7299, 260420), (8082, 235190), (8110, 234378), (8980, 211671), (9732, 195315), (12165, 156252), (13021, 145980), (13470, 141114), (14598, 130210), (16164, 117595), (16220, 117189), (20205, 94076), (23519, 80820), (24330, 78126), (26042, 72990), (26940, 70557), (29196, 65105), (36495, 52084), (39063, 48660), (40410, 47038)]