217937720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5443}}^1$

素因数の和:5485

約数の個数: 128

約数和(自身を含む): 658506240

約数和(自身を除く): 440568520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3640, 4004, 5005, 5443, 5720, 8008, 10010, 10886, 20020, 21772, 27215, 38101, 40040, 43544, 54430, 59873, 70759, 76202, 108860, 119746, 141518, 152404, 190505, 217720, 239492, 283036, 299365, 304808, 353795, 381010, 419111, 478984, 495313, 566072, 598730, 707590, 762020, 778349, 838222, 990626, 1197460, 1415180, 1524040, 1556698, 1676444, 1981252, 2095555, 2394920, 2476565, 2830360, 3113396, 3352888, 3891745, 3962504, 4191110, 4953130, 5448443, 6226792, 7783490, 8382220, 9906260, 10896886, 15566980, 16764440, 19812520, 21793772, 27242215, 31133960, 43587544, 54484430, 108968860, 217937720]

約数ペア:

[(1, 217937720), (2, 108968860), (4, 54484430), (5, 43587544), (7, 31133960), (8, 27242215), (10, 21793772), (11, 19812520), (13, 16764440), (14, 15566980), (20, 10896886), (22, 9906260), (26, 8382220), (28, 7783490), (35, 6226792), (40, 5448443), (44, 4953130), (52, 4191110), (55, 3962504), (56, 3891745), (65, 3352888), (70, 3113396), (77, 2830360), (88, 2476565), (91, 2394920), (104, 2095555), (110, 1981252), (130, 1676444), (140, 1556698), (143, 1524040), (154, 1415180), (182, 1197460), (220, 990626), (260, 838222), (280, 778349), (286, 762020), (308, 707590), (364, 598730), (385, 566072), (440, 495313), (455, 478984), (520, 419111), (572, 381010), (616, 353795), (715, 304808), (728, 299365), (770, 283036), (910, 239492), (1001, 217720), (1144, 190505), (1430, 152404), (1540, 141518), (1820, 119746), (2002, 108860), (2860, 76202), (3080, 70759), (3640, 59873), (4004, 54430), (5005, 43544), (5443, 40040), (5720, 38101), (8008, 27215), (10010, 21772), (10886, 20020)]