1999366940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{25679}}^1$

素因数の和:25934

約数の個数: 48

約数和(自身を含む): 4465238400

約数和(自身を除く): 2465871460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 229, 340, 458, 916, 1145, 2290, 3893, 4580, 7786, 15572, 19465, 25679, 38930, 51358, 77860, 102716, 128395, 256790, 436543, 513580, 873086, 1746172, 2182715, 4365430, 5880491, 8730860, 11760982, 23521964, 29402455, 58804910, 99968347, 117609820, 199936694, 399873388, 499841735, 999683470, 1999366940]

約数ペア:

[(1, 1999366940), (2, 999683470), (4, 499841735), (5, 399873388), (10, 199936694), (17, 117609820), (20, 99968347), (34, 58804910), (68, 29402455), (85, 23521964), (170, 11760982), (229, 8730860), (340, 5880491), (458, 4365430), (916, 2182715), (1145, 1746172), (2290, 873086), (3893, 513580), (4580, 436543), (7786, 256790), (15572, 128395), (19465, 102716), (25679, 77860), (38930, 51358)]