20183730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 55738368

約数和(自身を除く): 35554638

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 431, 446, 669, 862, 1115, 1293, 1338, 1561, 2155, 2230, 2586, 3017, 3122, 3345, 4310, 4683, 6034, 6465, 6690, 7805, 9051, 9366, 12930, 15085, 15610, 18102, 23415, 30170, 45255, 46830, 90510, 96113, 192226, 288339, 480565, 576678, 672791, 961130, 1345582, 1441695, 2018373, 2883390, 3363955, 4036746, 6727910, 10091865, 20183730]

約数ペア:

[(1, 20183730), (2, 10091865), (3, 6727910), (5, 4036746), (6, 3363955), (7, 2883390), (10, 2018373), (14, 1441695), (15, 1345582), (21, 961130), (30, 672791), (35, 576678), (42, 480565), (70, 288339), (105, 192226), (210, 96113), (223, 90510), (431, 46830), (446, 45255), (669, 30170), (862, 23415), (1115, 18102), (1293, 15610), (1338, 15085), (1561, 12930), (2155, 9366), (2230, 9051), (2586, 7805), (3017, 6690), (3122, 6465), (3345, 6034), (4310, 4683)]