1870777720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1\times {\mathrm{503}}^1$

素因数の和:917

約数の個数: 128

約数和(自身を含む): 4964198400

約数和(自身を除く): 3093420680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 359, 370, 503, 518, 718, 740, 1006, 1036, 1295, 1436, 1480, 1795, 2012, 2072, 2513, 2515, 2590, 2872, 3521, 3590, 4024, 5026, 5030, 5180, 7042, 7180, 10052, 10060, 10360, 12565, 13283, 14084, 14360, 17605, 18611, 20104, 20120, 25130, 26566, 28168, 35210, 37222, 50260, 53132, 66415, 70420, 74444, 92981, 93055, 100520, 106264, 130277, 132830, 140840, 148888, 180577, 185962, 186110, 260554, 265660, 361154, 371924, 372220, 464905, 521108, 531320, 651385, 722308, 743848, 744440, 902885, 929810, 1042216, 1264039, 1302770, 1444616, 1805770, 1859620, 2528078, 2605540, 3611540, 3719240, 5056156, 5211080, 6320195, 6681349, 7223080, 10112312, 12640390, 13362698, 25280780, 26725396, 33406745, 46769443, 50561560, 53450792, 66813490, 93538886, 133626980, 187077772, 233847215, 267253960, 374155544, 467694430, 935388860, 1870777720]

約数ペア:

[(1, 1870777720), (2, 935388860), (4, 467694430), (5, 374155544), (7, 267253960), (8, 233847215), (10, 187077772), (14, 133626980), (20, 93538886), (28, 66813490), (35, 53450792), (37, 50561560), (40, 46769443), (56, 33406745), (70, 26725396), (74, 25280780), (140, 13362698), (148, 12640390), (185, 10112312), (259, 7223080), (280, 6681349), (296, 6320195), (359, 5211080), (370, 5056156), (503, 3719240), (518, 3611540), (718, 2605540), (740, 2528078), (1006, 1859620), (1036, 1805770), (1295, 1444616), (1436, 1302770), (1480, 1264039), (1795, 1042216), (2012, 929810), (2072, 902885), (2513, 744440), (2515, 743848), (2590, 722308), (2872, 651385), (3521, 531320), (3590, 521108), (4024, 464905), (5026, 372220), (5030, 371924), (5180, 361154), (7042, 265660), (7180, 260554), (10052, 186110), (10060, 185962), (10360, 180577), (12565, 148888), (13283, 140840), (14084, 132830), (14360, 130277), (17605, 106264), (18611, 100520), (20104, 93055), (20120, 92981), (25130, 74444), (26566, 70420), (28168, 66415), (35210, 53132), (37222, 50260)]