221239480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 627264000

約数和(自身を除く): 406024520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 109, 110, 140, 154, 218, 220, 280, 308, 385, 436, 440, 545, 616, 659, 763, 770, 872, 1090, 1199, 1318, 1526, 1540, 2180, 2398, 2636, 3052, 3080, 3295, 3815, 4360, 4613, 4796, 5272, 5995, 6104, 6590, 7249, 7630, 8393, 9226, 9592, 11990, 13180, 14498, 15260, 16786, 18452, 23065, 23980, 26360, 28996, 30520, 33572, 36245, 36904, 41965, 46130, 47960, 50743, 57992, 67144, 71831, 72490, 83930, 92260, 101486, 143662, 144980, 167860, 184520, 202972, 253715, 287324, 289960, 335720, 359155, 405944, 502817, 507430, 574648, 718310, 790141, 1005634, 1014860, 1436620, 1580282, 2011268, 2029720, 2514085, 2873240, 3160564, 3950705, 4022536, 5028170, 5530987, 6321128, 7901410, 10056340, 11061974, 15802820, 20112680, 22123948, 27654935, 31605640, 44247896, 55309870, 110619740, 221239480]

約数ペア:

[(1, 221239480), (2, 110619740), (4, 55309870), (5, 44247896), (7, 31605640), (8, 27654935), (10, 22123948), (11, 20112680), (14, 15802820), (20, 11061974), (22, 10056340), (28, 7901410), (35, 6321128), (40, 5530987), (44, 5028170), (55, 4022536), (56, 3950705), (70, 3160564), (77, 2873240), (88, 2514085), (109, 2029720), (110, 2011268), (140, 1580282), (154, 1436620), (218, 1014860), (220, 1005634), (280, 790141), (308, 718310), (385, 574648), (436, 507430), (440, 502817), (545, 405944), (616, 359155), (659, 335720), (763, 289960), (770, 287324), (872, 253715), (1090, 202972), (1199, 184520), (1318, 167860), (1526, 144980), (1540, 143662), (2180, 101486), (2398, 92260), (2636, 83930), (3052, 72490), (3080, 71831), (3295, 67144), (3815, 57992), (4360, 50743), (4613, 47960), (4796, 46130), (5272, 41965), (5995, 36904), (6104, 36245), (6590, 33572), (7249, 30520), (7630, 28996), (8393, 26360), (9226, 23980), (9592, 23065), (11990, 18452), (13180, 16786), (14498, 15260)]