20488210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 20569070

約数列:

[1, 2, 5, 10, 29, 31, 43, 53, 58, 62, 86, 106, 145, 155, 215, 265, 290, 310, 430, 530, 899, 1247, 1333, 1537, 1643, 1798, 2279, 2494, 2666, 3074, 3286, 4495, 4558, 6235, 6665, 7685, 8215, 8990, 11395, 12470, 13330, 15370, 16430, 22790, 38657, 47647, 66091, 70649, 77314, 95294, 132182, 141298, 193285, 238235, 330455, 353245, 386570, 476470, 660910, 706490, 2048821, 4097642, 10244105, 20488210]

約数ペア:

[(1, 20488210), (2, 10244105), (5, 4097642), (10, 2048821), (29, 706490), (31, 660910), (43, 476470), (53, 386570), (58, 353245), (62, 330455), (86, 238235), (106, 193285), (145, 141298), (155, 132182), (215, 95294), (265, 77314), (290, 70649), (310, 66091), (430, 47647), (530, 38657), (899, 22790), (1247, 16430), (1333, 15370), (1537, 13330), (1643, 12470), (1798, 11395), (2279, 8990), (2494, 8215), (2666, 7685), (3074, 6665), (3286, 6235), (4495, 4558)]