208937680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 160

約数和(自身を含む): 594604800

約数和(自身を除く): 385667120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 73, 76, 80, 95, 112, 133, 140, 146, 152, 190, 266, 269, 280, 292, 304, 365, 380, 511, 532, 538, 560, 584, 665, 730, 760, 1022, 1064, 1076, 1168, 1330, 1345, 1387, 1460, 1520, 1883, 2044, 2128, 2152, 2555, 2660, 2690, 2774, 2920, 3766, 4088, 4304, 5110, 5111, 5320, 5380, 5548, 5840, 6935, 7532, 8176, 9415, 9709, 10220, 10222, 10640, 10760, 11096, 13870, 15064, 18830, 19418, 19637, 20440, 20444, 21520, 22192, 25555, 27740, 30128, 35777, 37660, 38836, 39274, 40880, 40888, 48545, 51110, 55480, 71554, 75320, 77672, 78548, 81776, 97090, 98185, 102220, 110960, 137459, 143108, 150640, 155344, 157096, 178885, 194180, 196370, 204440, 274918, 286216, 314192, 357770, 373103, 388360, 392740, 408880, 549836, 572432, 687295, 715540, 746206, 776720, 785480, 1099672, 1374590, 1431080, 1492412, 1570960, 1865515, 2199344, 2611721, 2749180, 2862160, 2984824, 3731030, 5223442, 5498360, 5969648, 7462060, 10446884, 10996720, 13058605, 14924120, 20893768, 26117210, 29848240, 41787536, 52234420, 104468840, 208937680]

約数ペア:

[(1, 208937680), (2, 104468840), (4, 52234420), (5, 41787536), (7, 29848240), (8, 26117210), (10, 20893768), (14, 14924120), (16, 13058605), (19, 10996720), (20, 10446884), (28, 7462060), (35, 5969648), (38, 5498360), (40, 5223442), (56, 3731030), (70, 2984824), (73, 2862160), (76, 2749180), (80, 2611721), (95, 2199344), (112, 1865515), (133, 1570960), (140, 1492412), (146, 1431080), (152, 1374590), (190, 1099672), (266, 785480), (269, 776720), (280, 746206), (292, 715540), (304, 687295), (365, 572432), (380, 549836), (511, 408880), (532, 392740), (538, 388360), (560, 373103), (584, 357770), (665, 314192), (730, 286216), (760, 274918), (1022, 204440), (1064, 196370), (1076, 194180), (1168, 178885), (1330, 157096), (1345, 155344), (1387, 150640), (1460, 143108), (1520, 137459), (1883, 110960), (2044, 102220), (2128, 98185), (2152, 97090), (2555, 81776), (2660, 78548), (2690, 77672), (2774, 75320), (2920, 71554), (3766, 55480), (4088, 51110), (4304, 48545), (5110, 40888), (5111, 40880), (5320, 39274), (5380, 38836), (5548, 37660), (5840, 35777), (6935, 30128), (7532, 27740), (8176, 25555), (9415, 22192), (9709, 21520), (10220, 20444), (10222, 20440), (10640, 19637), (10760, 19418), (11096, 18830), (13870, 15064)]