20025460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11003}}^1$

素因数の和:11032

約数の個数: 48

約数和(自身を含む): 51762816

約数和(自身を除く): 31737356

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11003, 22006, 44012, 55015, 77021, 110030, 143039, 154042, 220060, 286078, 308084, 385105, 572156, 715195, 770210, 1001273, 1430390, 1540420, 2002546, 2860780, 4005092, 5006365, 10012730, 20025460]

約数ペア:

[(1, 20025460), (2, 10012730), (4, 5006365), (5, 4005092), (7, 2860780), (10, 2002546), (13, 1540420), (14, 1430390), (20, 1001273), (26, 770210), (28, 715195), (35, 572156), (52, 385105), (65, 308084), (70, 286078), (91, 220060), (130, 154042), (140, 143039), (182, 110030), (260, 77021), (364, 55015), (455, 44012), (910, 22006), (1820, 11003)]