20303948

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 42040320

約数和(自身を除く): 21736372

約数列:

[1, 2, 4, 7, 14, 28, 67, 79, 134, 137, 158, 268, 274, 316, 469, 548, 553, 938, 959, 1106, 1876, 1918, 2212, 3836, 5293, 9179, 10586, 10823, 18358, 21172, 21646, 36716, 37051, 43292, 64253, 74102, 75761, 128506, 148204, 151522, 257012, 303044, 725141, 1450282, 2900564, 5075987, 10151974, 20303948]

約数ペア:

[(1, 20303948), (2, 10151974), (4, 5075987), (7, 2900564), (14, 1450282), (28, 725141), (67, 303044), (79, 257012), (134, 151522), (137, 148204), (158, 128506), (268, 75761), (274, 74102), (316, 64253), (469, 43292), (548, 37051), (553, 36716), (938, 21646), (959, 21172), (1106, 18358), (1876, 10823), (1918, 10586), (2212, 9179), (3836, 5293)]