19640040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 68290560

約数和(自身を除く): 48650520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 206, 210, 227, 280, 309, 412, 420, 454, 515, 618, 681, 721, 824, 840, 908, 1030, 1135, 1236, 1362, 1442, 1545, 1589, 1816, 2060, 2163, 2270, 2472, 2724, 2884, 3090, 3178, 3405, 3605, 4120, 4326, 4540, 4767, 5448, 5768, 6180, 6356, 6810, 7210, 7945, 8652, 9080, 9534, 10815, 12360, 12712, 13620, 14420, 15890, 17304, 19068, 21630, 23381, 23835, 27240, 28840, 31780, 38136, 43260, 46762, 47670, 63560, 70143, 86520, 93524, 95340, 116905, 140286, 163667, 187048, 190680, 233810, 280572, 327334, 350715, 467620, 491001, 561144, 654668, 701430, 818335, 935240, 982002, 1309336, 1402860, 1636670, 1964004, 2455005, 2805720, 3273340, 3928008, 4910010, 6546680, 9820020, 19640040]

約数ペア:

[(1, 19640040), (2, 9820020), (3, 6546680), (4, 4910010), (5, 3928008), (6, 3273340), (7, 2805720), (8, 2455005), (10, 1964004), (12, 1636670), (14, 1402860), (15, 1309336), (20, 982002), (21, 935240), (24, 818335), (28, 701430), (30, 654668), (35, 561144), (40, 491001), (42, 467620), (56, 350715), (60, 327334), (70, 280572), (84, 233810), (103, 190680), (105, 187048), (120, 163667), (140, 140286), (168, 116905), (206, 95340), (210, 93524), (227, 86520), (280, 70143), (309, 63560), (412, 47670), (420, 46762), (454, 43260), (515, 38136), (618, 31780), (681, 28840), (721, 27240), (824, 23835), (840, 23381), (908, 21630), (1030, 19068), (1135, 17304), (1236, 15890), (1362, 14420), (1442, 13620), (1545, 12712), (1589, 12360), (1816, 10815), (2060, 9534), (2163, 9080), (2270, 8652), (2472, 7945), (2724, 7210), (2884, 6810), (3090, 6356), (3178, 6180), (3405, 5768), (3605, 5448), (4120, 4767), (4326, 4540)]