20165536

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1951}}^1$

素因数の和:1997

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 24105824

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 1951, 2584, 3902, 5168, 7804, 10336, 15608, 31216, 33167, 37069, 62432, 66334, 74138, 132668, 148276, 265336, 296552, 530672, 593104, 630173, 1061344, 1186208, 1260346, 2520692, 5041384, 10082768, 20165536]

約数ペア:

[(1, 20165536), (2, 10082768), (4, 5041384), (8, 2520692), (16, 1260346), (17, 1186208), (19, 1061344), (32, 630173), (34, 593104), (38, 530672), (68, 296552), (76, 265336), (136, 148276), (152, 132668), (272, 74138), (304, 66334), (323, 62432), (544, 37069), (608, 33167), (646, 31216), (1292, 15608), (1951, 10336), (2584, 7804), (3902, 5168)]