201978020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19163}}^1$

素因数の和:19220

約数の個数: 48

約数和(自身を含む): 463615488

約数和(自身を除く): 261637468

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 5270, 10540, 19163, 38326, 76652, 95815, 191630, 325771, 383260, 594053, 651542, 1188106, 1303084, 1628855, 2376212, 2970265, 3257710, 5940530, 6515420, 10098901, 11881060, 20197802, 40395604, 50494505, 100989010, 201978020]

約数ペア:

[(1, 201978020), (2, 100989010), (4, 50494505), (5, 40395604), (10, 20197802), (17, 11881060), (20, 10098901), (31, 6515420), (34, 5940530), (62, 3257710), (68, 2970265), (85, 2376212), (124, 1628855), (155, 1303084), (170, 1188106), (310, 651542), (340, 594053), (527, 383260), (620, 325771), (1054, 191630), (2108, 95815), (2635, 76652), (5270, 38326), (10540, 19163)]