81913440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{24379}}^1$

素因数の和:24404

約数の個数: 96

約数和(自身を含む): 294900480

約数和(自身を除く): 212987040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 24379, 48758, 73137, 97516, 121895, 146274, 170653, 195032, 243790, 292548, 341306, 365685, 390064, 487580, 511959, 585096, 682612, 731370, 780128, 853265, 975160, 1023918, 1170192, 1365224, 1462740, 1706530, 1950320, 2047836, 2340384, 2559795, 2730448, 2925480, 3413060, 3900640, 4095672, 5119590, 5460896, 5850960, 6826120, 8191344, 10239180, 11701920, 13652240, 16382688, 20478360, 27304480, 40956720, 81913440]

約数ペア:

[(1, 81913440), (2, 40956720), (3, 27304480), (4, 20478360), (5, 16382688), (6, 13652240), (7, 11701920), (8, 10239180), (10, 8191344), (12, 6826120), (14, 5850960), (15, 5460896), (16, 5119590), (20, 4095672), (21, 3900640), (24, 3413060), (28, 2925480), (30, 2730448), (32, 2559795), (35, 2340384), (40, 2047836), (42, 1950320), (48, 1706530), (56, 1462740), (60, 1365224), (70, 1170192), (80, 1023918), (84, 975160), (96, 853265), (105, 780128), (112, 731370), (120, 682612), (140, 585096), (160, 511959), (168, 487580), (210, 390064), (224, 365685), (240, 341306), (280, 292548), (336, 243790), (420, 195032), (480, 170653), (560, 146274), (672, 121895), (840, 97516), (1120, 73137), (1680, 48758), (3360, 24379)]