172177720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1037

約数の個数: 128

約数和(自身を含む): 470292480

約数和(自身を除く): 298114760

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 440, 520, 572, 620, 682, 715, 806, 971, 1144, 1240, 1364, 1430, 1612, 1705, 1942, 2015, 2728, 2860, 3224, 3410, 3884, 4030, 4433, 4855, 5720, 6820, 7768, 8060, 8866, 9710, 10681, 12623, 13640, 16120, 17732, 19420, 21362, 22165, 25246, 30101, 35464, 38840, 42724, 44330, 50492, 53405, 60202, 63115, 85448, 88660, 100984, 106810, 120404, 126230, 138853, 150505, 177320, 213620, 240808, 252460, 277706, 301010, 331111, 391313, 427240, 504920, 555412, 602020, 662222, 694265, 782626, 1110824, 1204040, 1324444, 1388530, 1565252, 1655555, 1956565, 2648888, 2777060, 3130504, 3311110, 3913130, 4304443, 5554120, 6622220, 7826260, 8608886, 13244440, 15652520, 17217772, 21522215, 34435544, 43044430, 86088860, 172177720]

約数ペア:

[(1, 172177720), (2, 86088860), (4, 43044430), (5, 34435544), (8, 21522215), (10, 17217772), (11, 15652520), (13, 13244440), (20, 8608886), (22, 7826260), (26, 6622220), (31, 5554120), (40, 4304443), (44, 3913130), (52, 3311110), (55, 3130504), (62, 2777060), (65, 2648888), (88, 1956565), (104, 1655555), (110, 1565252), (124, 1388530), (130, 1324444), (143, 1204040), (155, 1110824), (220, 782626), (248, 694265), (260, 662222), (286, 602020), (310, 555412), (341, 504920), (403, 427240), (440, 391313), (520, 331111), (572, 301010), (620, 277706), (682, 252460), (715, 240808), (806, 213620), (971, 177320), (1144, 150505), (1240, 138853), (1364, 126230), (1430, 120404), (1612, 106810), (1705, 100984), (1942, 88660), (2015, 85448), (2728, 63115), (2860, 60202), (3224, 53405), (3410, 50492), (3884, 44330), (4030, 42724), (4433, 38840), (4855, 35464), (5720, 30101), (6820, 25246), (7768, 22165), (8060, 21362), (8866, 19420), (9710, 17732), (10681, 16120), (12623, 13640)]