201791720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1381}}^1$

素因数の和:1686

約数の個数: 64

約数和(自身を含む): 491052240

約数和(自身を除く): 289260520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 281, 520, 562, 1124, 1381, 1405, 2248, 2762, 2810, 3653, 5524, 5620, 6905, 7306, 11048, 11240, 13810, 14612, 17953, 18265, 27620, 29224, 35906, 36530, 55240, 71812, 73060, 89765, 143624, 146120, 179530, 359060, 388061, 718120, 776122, 1552244, 1940305, 3104488, 3880610, 5044793, 7761220, 10089586, 15522440, 20179172, 25223965, 40358344, 50447930, 100895860, 201791720]

約数ペア:

[(1, 201791720), (2, 100895860), (4, 50447930), (5, 40358344), (8, 25223965), (10, 20179172), (13, 15522440), (20, 10089586), (26, 7761220), (40, 5044793), (52, 3880610), (65, 3104488), (104, 1940305), (130, 1552244), (260, 776122), (281, 718120), (520, 388061), (562, 359060), (1124, 179530), (1381, 146120), (1405, 143624), (2248, 89765), (2762, 73060), (2810, 71812), (3653, 55240), (5524, 36530), (5620, 35906), (6905, 29224), (7306, 27620), (11048, 18265), (11240, 17953), (13810, 14612)]