20386730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 46303488

約数和(自身を除く): 25916758

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 43, 65, 70, 86, 91, 130, 182, 215, 301, 430, 455, 521, 559, 602, 910, 1042, 1118, 1505, 2605, 2795, 3010, 3647, 3913, 5210, 5590, 6773, 7294, 7826, 13546, 18235, 19565, 22403, 33865, 36470, 39130, 44806, 47411, 67730, 94822, 112015, 156821, 224030, 237055, 291239, 313642, 474110, 582478, 784105, 1456195, 1568210, 2038673, 2912390, 4077346, 10193365, 20386730]

約数ペア:

[(1, 20386730), (2, 10193365), (5, 4077346), (7, 2912390), (10, 2038673), (13, 1568210), (14, 1456195), (26, 784105), (35, 582478), (43, 474110), (65, 313642), (70, 291239), (86, 237055), (91, 224030), (130, 156821), (182, 112015), (215, 94822), (301, 67730), (430, 47411), (455, 44806), (521, 39130), (559, 36470), (602, 33865), (910, 22403), (1042, 19565), (1118, 18235), (1505, 13546), (2605, 7826), (2795, 7294), (3010, 6773), (3647, 5590), (3913, 5210)]