25441520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1482

約数の個数: 80

約数和(自身を含む): 67495680

約数和(自身を除く): 42054160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1439, 1768, 2210, 2878, 3536, 4420, 5756, 7195, 8840, 11512, 14390, 17680, 18707, 23024, 24463, 28780, 37414, 48926, 57560, 74828, 93535, 97852, 115120, 122315, 149656, 187070, 195704, 244630, 299312, 318019, 374140, 391408, 489260, 636038, 748280, 978520, 1272076, 1496560, 1590095, 1957040, 2544152, 3180190, 5088304, 6360380, 12720760, 25441520]

約数ペア:

[(1, 25441520), (2, 12720760), (4, 6360380), (5, 5088304), (8, 3180190), (10, 2544152), (13, 1957040), (16, 1590095), (17, 1496560), (20, 1272076), (26, 978520), (34, 748280), (40, 636038), (52, 489260), (65, 391408), (68, 374140), (80, 318019), (85, 299312), (104, 244630), (130, 195704), (136, 187070), (170, 149656), (208, 122315), (221, 115120), (260, 97852), (272, 93535), (340, 74828), (442, 57560), (520, 48926), (680, 37414), (884, 28780), (1040, 24463), (1105, 23024), (1360, 18707), (1439, 17680), (1768, 14390), (2210, 11512), (2878, 8840), (3536, 7195), (4420, 5756)]