157998520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 362325600

約数和(自身を除く): 204327080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 157, 181, 278, 314, 362, 556, 628, 695, 724, 785, 905, 1112, 1256, 1390, 1448, 1570, 1810, 2780, 3140, 3620, 5560, 6280, 7240, 21823, 25159, 28417, 43646, 50318, 56834, 87292, 100636, 109115, 113668, 125795, 142085, 174584, 201272, 218230, 227336, 251590, 284170, 436460, 503180, 568340, 872920, 1006360, 1136680, 3949963, 7899926, 15799852, 19749815, 31599704, 39499630, 78999260, 157998520]

約数ペア:

[(1, 157998520), (2, 78999260), (4, 39499630), (5, 31599704), (8, 19749815), (10, 15799852), (20, 7899926), (40, 3949963), (139, 1136680), (157, 1006360), (181, 872920), (278, 568340), (314, 503180), (362, 436460), (556, 284170), (628, 251590), (695, 227336), (724, 218230), (785, 201272), (905, 174584), (1112, 142085), (1256, 125795), (1390, 113668), (1448, 109115), (1570, 100636), (1810, 87292), (2780, 56834), (3140, 50318), (3620, 43646), (5560, 28417), (6280, 25159), (7240, 21823)]