19885684980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{65851}}^1$

素因数の和:66589

約数の個数: 96

約数和(自身を含む): 63723663360

約数和(自身を除く): 43837978380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 719, 1438, 2157, 2876, 3595, 4314, 5033, 7190, 8628, 10066, 10785, 14380, 15099, 20132, 21570, 25165, 30198, 43140, 50330, 60396, 65851, 75495, 100660, 131702, 150990, 197553, 263404, 301980, 329255, 395106, 460957, 658510, 790212, 921914, 987765, 1317020, 1382871, 1843828, 1975530, 2304785, 2765742, 3951060, 4609570, 5531484, 6914355, 9219140, 13828710, 27657420, 47346869, 94693738, 142040607, 189387476, 236734345, 284081214, 331428083, 473468690, 568162428, 662856166, 710203035, 946937380, 994284249, 1325712332, 1420406070, 1657140415, 1988568498, 2840812140, 3314280830, 3977136996, 4971421245, 6628561660, 9942842490, 19885684980]

約数ペア:

[(1, 19885684980), (2, 9942842490), (3, 6628561660), (4, 4971421245), (5, 3977136996), (6, 3314280830), (7, 2840812140), (10, 1988568498), (12, 1657140415), (14, 1420406070), (15, 1325712332), (20, 994284249), (21, 946937380), (28, 710203035), (30, 662856166), (35, 568162428), (42, 473468690), (60, 331428083), (70, 284081214), (84, 236734345), (105, 189387476), (140, 142040607), (210, 94693738), (420, 47346869), (719, 27657420), (1438, 13828710), (2157, 9219140), (2876, 6914355), (3595, 5531484), (4314, 4609570), (5033, 3951060), (7190, 2765742), (8628, 2304785), (10066, 1975530), (10785, 1843828), (14380, 1382871), (15099, 1317020), (20132, 987765), (21570, 921914), (25165, 790212), (30198, 658510), (43140, 460957), (50330, 395106), (60396, 329255), (65851, 301980), (75495, 263404), (100660, 197553), (131702, 150990)]