19646320

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1019}}^1$

素因数の和:1273

約数の個数: 40

約数和(自身を含む): 45912240

約数和(自身を除く): 26265920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1019, 1205, 1928, 2038, 2410, 3856, 4076, 4820, 5095, 8152, 9640, 10190, 16304, 19280, 20380, 40760, 81520, 245579, 491158, 982316, 1227895, 1964632, 2455790, 3929264, 4911580, 9823160, 19646320]

約数ペア:

[(1, 19646320), (2, 9823160), (4, 4911580), (5, 3929264), (8, 2455790), (10, 1964632), (16, 1227895), (20, 982316), (40, 491158), (80, 245579), (241, 81520), (482, 40760), (964, 20380), (1019, 19280), (1205, 16304), (1928, 10190), (2038, 9640), (2410, 8152), (3856, 5095), (4076, 4820)]