2104508720

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1\times {\mathrm{1439}}^1$

素因数の和:1734

約数の個数: 80

約数和(自身を含む): 4972181760

約数和(自身を除く): 2867673040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 181, 202, 362, 404, 505, 724, 808, 905, 1010, 1439, 1448, 1616, 1810, 2020, 2878, 2896, 3620, 4040, 5756, 7195, 7240, 8080, 11512, 14390, 14480, 18281, 23024, 28780, 36562, 57560, 73124, 91405, 115120, 145339, 146248, 182810, 260459, 290678, 292496, 365620, 520918, 581356, 726695, 731240, 1041836, 1162712, 1302295, 1453390, 1462480, 2083672, 2325424, 2604590, 2906780, 4167344, 5209180, 5813560, 10418360, 11627120, 20836720, 26306359, 52612718, 105225436, 131531795, 210450872, 263063590, 420901744, 526127180, 1052254360, 2104508720]

約数ペア:

[(1, 2104508720), (2, 1052254360), (4, 526127180), (5, 420901744), (8, 263063590), (10, 210450872), (16, 131531795), (20, 105225436), (40, 52612718), (80, 26306359), (101, 20836720), (181, 11627120), (202, 10418360), (362, 5813560), (404, 5209180), (505, 4167344), (724, 2906780), (808, 2604590), (905, 2325424), (1010, 2083672), (1439, 1462480), (1448, 1453390), (1616, 1302295), (1810, 1162712), (2020, 1041836), (2878, 731240), (2896, 726695), (3620, 581356), (4040, 520918), (5756, 365620), (7195, 292496), (7240, 290678), (8080, 260459), (11512, 182810), (14390, 146248), (14480, 145339), (18281, 115120), (23024, 91405), (28780, 73124), (36562, 57560)]