205102240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{26161}}^1$

素因数の和:26190

約数の個数: 72

約数和(自身を含む): 563686452

約数和(自身を除く): 358584212

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 26161, 52322, 104644, 130805, 183127, 209288, 261610, 366254, 418576, 523220, 732508, 837152, 915635, 1046440, 1281889, 1465016, 1831270, 2092880, 2563778, 2930032, 3662540, 4185760, 5127556, 5860064, 6409445, 7325080, 10255112, 12818890, 14650160, 20510224, 25637780, 29300320, 41020448, 51275560, 102551120, 205102240]

約数ペア:

[(1, 205102240), (2, 102551120), (4, 51275560), (5, 41020448), (7, 29300320), (8, 25637780), (10, 20510224), (14, 14650160), (16, 12818890), (20, 10255112), (28, 7325080), (32, 6409445), (35, 5860064), (40, 5127556), (49, 4185760), (56, 3662540), (70, 2930032), (80, 2563778), (98, 2092880), (112, 1831270), (140, 1465016), (160, 1281889), (196, 1046440), (224, 915635), (245, 837152), (280, 732508), (392, 523220), (490, 418576), (560, 366254), (784, 261610), (980, 209288), (1120, 183127), (1568, 130805), (1960, 104644), (3920, 52322), (7840, 26161)]