2111720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 5322240

約数和(自身を除く): 3210520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 131, 155, 248, 260, 262, 310, 403, 520, 524, 620, 655, 806, 1048, 1240, 1310, 1612, 1703, 2015, 2620, 3224, 3406, 4030, 4061, 5240, 6812, 8060, 8122, 8515, 13624, 16120, 16244, 17030, 20305, 32488, 34060, 40610, 52793, 68120, 81220, 105586, 162440, 211172, 263965, 422344, 527930, 1055860, 2111720]

約数ペア:

[(1, 2111720), (2, 1055860), (4, 527930), (5, 422344), (8, 263965), (10, 211172), (13, 162440), (20, 105586), (26, 81220), (31, 68120), (40, 52793), (52, 40610), (62, 34060), (65, 32488), (104, 20305), (124, 17030), (130, 16244), (131, 16120), (155, 13624), (248, 8515), (260, 8122), (262, 8060), (310, 6812), (403, 5240), (520, 4061), (524, 4030), (620, 3406), (655, 3224), (806, 2620), (1048, 2015), (1240, 1703), (1310, 1612)]