18837910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 42319872

約数和(自身を除く): 23481962

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 127, 130, 163, 182, 254, 326, 455, 635, 815, 889, 910, 1141, 1270, 1630, 1651, 1778, 2119, 2282, 3302, 4238, 4445, 5705, 8255, 8890, 10595, 11410, 11557, 14833, 16510, 20701, 21190, 23114, 29666, 41402, 57785, 74165, 103505, 115570, 144907, 148330, 207010, 269113, 289814, 538226, 724535, 1345565, 1449070, 1883791, 2691130, 3767582, 9418955, 18837910]

約数ペア:

[(1, 18837910), (2, 9418955), (5, 3767582), (7, 2691130), (10, 1883791), (13, 1449070), (14, 1345565), (26, 724535), (35, 538226), (65, 289814), (70, 269113), (91, 207010), (127, 148330), (130, 144907), (163, 115570), (182, 103505), (254, 74165), (326, 57785), (455, 41402), (635, 29666), (815, 23114), (889, 21190), (910, 20701), (1141, 16510), (1270, 14833), (1630, 11557), (1651, 11410), (1778, 10595), (2119, 8890), (2282, 8255), (3302, 5705), (4238, 4445)]