20914140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26813}}^1$

素因数の和:26838

約数の個数: 48

約数和(自身を含む): 63066528

約数和(自身を除く): 42152388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26813, 53626, 80439, 107252, 134065, 160878, 268130, 321756, 348569, 402195, 536260, 697138, 804390, 1045707, 1394276, 1608780, 1742845, 2091414, 3485690, 4182828, 5228535, 6971380, 10457070, 20914140]

約数ペア:

[(1, 20914140), (2, 10457070), (3, 6971380), (4, 5228535), (5, 4182828), (6, 3485690), (10, 2091414), (12, 1742845), (13, 1608780), (15, 1394276), (20, 1045707), (26, 804390), (30, 697138), (39, 536260), (52, 402195), (60, 348569), (65, 321756), (78, 268130), (130, 160878), (156, 134065), (195, 107252), (260, 80439), (390, 53626), (780, 26813)]