865854220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:764

約数の個数: 144

約数和(自身を含む): 2316625920

約数和(自身を除く): 1450771700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 79, 110, 121, 140, 154, 158, 220, 242, 308, 316, 385, 395, 484, 553, 605, 647, 770, 790, 847, 869, 1106, 1210, 1294, 1540, 1580, 1694, 1738, 2212, 2420, 2588, 2765, 3235, 3388, 3476, 4235, 4345, 4529, 5530, 6083, 6470, 7117, 8470, 8690, 9058, 9559, 11060, 12166, 12940, 14234, 16940, 17380, 18116, 19118, 22645, 24332, 28468, 30415, 35585, 38236, 45290, 47795, 49819, 51113, 60830, 66913, 71170, 78287, 90580, 95590, 99638, 102226, 121660, 133826, 142340, 156574, 191180, 199276, 204452, 249095, 255565, 267652, 313148, 334565, 357791, 391435, 498190, 511130, 548009, 562243, 669130, 715582, 782870, 996380, 1022260, 1096018, 1124486, 1338260, 1431164, 1565740, 1788955, 2192036, 2248972, 2740045, 2811215, 3577910, 3935701, 5480090, 5622430, 6184673, 7155820, 7871402, 10960180, 11244860, 12369346, 15742804, 19678505, 24738692, 30923365, 39357010, 43292711, 61846730, 78714020, 86585422, 123693460, 173170844, 216463555, 432927110, 865854220]

約数ペア:

[(1, 865854220), (2, 432927110), (4, 216463555), (5, 173170844), (7, 123693460), (10, 86585422), (11, 78714020), (14, 61846730), (20, 43292711), (22, 39357010), (28, 30923365), (35, 24738692), (44, 19678505), (55, 15742804), (70, 12369346), (77, 11244860), (79, 10960180), (110, 7871402), (121, 7155820), (140, 6184673), (154, 5622430), (158, 5480090), (220, 3935701), (242, 3577910), (308, 2811215), (316, 2740045), (385, 2248972), (395, 2192036), (484, 1788955), (553, 1565740), (605, 1431164), (647, 1338260), (770, 1124486), (790, 1096018), (847, 1022260), (869, 996380), (1106, 782870), (1210, 715582), (1294, 669130), (1540, 562243), (1580, 548009), (1694, 511130), (1738, 498190), (2212, 391435), (2420, 357791), (2588, 334565), (2765, 313148), (3235, 267652), (3388, 255565), (3476, 249095), (4235, 204452), (4345, 199276), (4529, 191180), (5530, 156574), (6083, 142340), (6470, 133826), (7117, 121660), (8470, 102226), (8690, 99638), (9058, 95590), (9559, 90580), (11060, 78287), (12166, 71170), (12940, 66913), (14234, 60830), (16940, 51113), (17380, 49819), (18116, 47795), (19118, 45290), (22645, 38236), (24332, 35585), (28468, 30415)]