72877840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{719}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 194987520

約数和(自身を除く): 122109680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 181, 280, 362, 560, 719, 724, 905, 1267, 1438, 1448, 1810, 2534, 2876, 2896, 3595, 3620, 5033, 5068, 5752, 6335, 7190, 7240, 10066, 10136, 11504, 12670, 14380, 14480, 20132, 20272, 25165, 25340, 28760, 40264, 50330, 50680, 57520, 80528, 100660, 101360, 130139, 201320, 260278, 402640, 520556, 650695, 910973, 1041112, 1301390, 1821946, 2082224, 2602780, 3643892, 4554865, 5205560, 7287784, 9109730, 10411120, 14575568, 18219460, 36438920, 72877840]

約数ペア:

[(1, 72877840), (2, 36438920), (4, 18219460), (5, 14575568), (7, 10411120), (8, 9109730), (10, 7287784), (14, 5205560), (16, 4554865), (20, 3643892), (28, 2602780), (35, 2082224), (40, 1821946), (56, 1301390), (70, 1041112), (80, 910973), (112, 650695), (140, 520556), (181, 402640), (280, 260278), (362, 201320), (560, 130139), (719, 101360), (724, 100660), (905, 80528), (1267, 57520), (1438, 50680), (1448, 50330), (1810, 40264), (2534, 28760), (2876, 25340), (2896, 25165), (3595, 20272), (3620, 20132), (5033, 14480), (5068, 14380), (5752, 12670), (6335, 11504), (7190, 10136), (7240, 10066)]