19454240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 31348960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 65, 80, 94, 104, 130, 160, 188, 199, 208, 235, 260, 376, 398, 416, 470, 520, 611, 752, 796, 940, 995, 1040, 1222, 1504, 1592, 1880, 1990, 2080, 2444, 2587, 3055, 3184, 3760, 3980, 4888, 5174, 6110, 6368, 7520, 7960, 9353, 9776, 10348, 12220, 12935, 15920, 18706, 19552, 20696, 24440, 25870, 31840, 37412, 41392, 46765, 48880, 51740, 74824, 82784, 93530, 97760, 103480, 121589, 149648, 187060, 206960, 243178, 299296, 374120, 413920, 486356, 607945, 748240, 972712, 1215890, 1496480, 1945424, 2431780, 3890848, 4863560, 9727120, 19454240]

約数ペア:

[(1, 19454240), (2, 9727120), (4, 4863560), (5, 3890848), (8, 2431780), (10, 1945424), (13, 1496480), (16, 1215890), (20, 972712), (26, 748240), (32, 607945), (40, 486356), (47, 413920), (52, 374120), (65, 299296), (80, 243178), (94, 206960), (104, 187060), (130, 149648), (160, 121589), (188, 103480), (199, 97760), (208, 93530), (235, 82784), (260, 74824), (376, 51740), (398, 48880), (416, 46765), (470, 41392), (520, 37412), (611, 31840), (752, 25870), (796, 24440), (940, 20696), (995, 19552), (1040, 18706), (1222, 15920), (1504, 12935), (1592, 12220), (1880, 10348), (1990, 9776), (2080, 9353), (2444, 7960), (2587, 7520), (3055, 6368), (3184, 6110), (3760, 5174), (3980, 4888)]