19932720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 65006256

約数和(自身を除く): 45073536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 157, 184, 230, 240, 276, 314, 345, 368, 460, 471, 529, 552, 628, 690, 785, 920, 942, 1058, 1104, 1256, 1380, 1570, 1587, 1840, 1884, 2116, 2355, 2512, 2645, 2760, 3140, 3174, 3611, 3768, 4232, 4710, 5290, 5520, 6280, 6348, 7222, 7536, 7935, 8464, 9420, 10580, 10833, 12560, 12696, 14444, 15870, 18055, 18840, 21160, 21666, 25392, 28888, 31740, 36110, 37680, 42320, 43332, 54165, 57776, 63480, 72220, 83053, 86664, 108330, 126960, 144440, 166106, 173328, 216660, 249159, 288880, 332212, 415265, 433320, 498318, 664424, 830530, 866640, 996636, 1245795, 1328848, 1661060, 1993272, 2491590, 3322120, 3986544, 4983180, 6644240, 9966360, 19932720]

約数ペア:

[(1, 19932720), (2, 9966360), (3, 6644240), (4, 4983180), (5, 3986544), (6, 3322120), (8, 2491590), (10, 1993272), (12, 1661060), (15, 1328848), (16, 1245795), (20, 996636), (23, 866640), (24, 830530), (30, 664424), (40, 498318), (46, 433320), (48, 415265), (60, 332212), (69, 288880), (80, 249159), (92, 216660), (115, 173328), (120, 166106), (138, 144440), (157, 126960), (184, 108330), (230, 86664), (240, 83053), (276, 72220), (314, 63480), (345, 57776), (368, 54165), (460, 43332), (471, 42320), (529, 37680), (552, 36110), (628, 31740), (690, 28888), (785, 25392), (920, 21666), (942, 21160), (1058, 18840), (1104, 18055), (1256, 15870), (1380, 14444), (1570, 12696), (1587, 12560), (1840, 10833), (1884, 10580), (2116, 9420), (2355, 8464), (2512, 7935), (2645, 7536), (2760, 7222), (3140, 6348), (3174, 6280), (3611, 5520), (3768, 5290), (4232, 4710)]