81155620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 192

約数和(自身を含む): 230985216

約数和(自身を除く): 149829596

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 43, 52, 61, 65, 68, 70, 85, 86, 91, 119, 122, 130, 140, 170, 172, 182, 215, 221, 238, 244, 260, 301, 305, 340, 364, 427, 430, 442, 455, 476, 559, 595, 602, 610, 731, 793, 854, 860, 884, 910, 1037, 1105, 1118, 1190, 1204, 1220, 1462, 1505, 1547, 1586, 1708, 1820, 2074, 2135, 2210, 2236, 2380, 2623, 2795, 2924, 3010, 3094, 3172, 3655, 3913, 3965, 4148, 4270, 4420, 5117, 5185, 5246, 5551, 5590, 6020, 6188, 7259, 7310, 7735, 7826, 7930, 8540, 9503, 10234, 10370, 10492, 11102, 11180, 13115, 13481, 14518, 14620, 15470, 15652, 15860, 18361, 19006, 19565, 20468, 20740, 22204, 25585, 26230, 26962, 27755, 29036, 30940, 34099, 36295, 36722, 38012, 39130, 44591, 47515, 51170, 52460, 53924, 55510, 66521, 67405, 68198, 72590, 73444, 78260, 89182, 91805, 94367, 95030, 102340, 111020, 133042, 134810, 136396, 145180, 170495, 178364, 183610, 188734, 190060, 222955, 238693, 266084, 269620, 312137, 332605, 340990, 367220, 377468, 445910, 471835, 477386, 579683, 624274, 665210, 681980, 891820, 943670, 954772, 1159366, 1193465, 1248548, 1330420, 1560685, 1887340, 2318732, 2386930, 2898415, 3121370, 4057781, 4773860, 5796830, 6242740, 8115562, 11593660, 16231124, 20288905, 40577810, 81155620]

約数ペア:

[(1, 81155620), (2, 40577810), (4, 20288905), (5, 16231124), (7, 11593660), (10, 8115562), (13, 6242740), (14, 5796830), (17, 4773860), (20, 4057781), (26, 3121370), (28, 2898415), (34, 2386930), (35, 2318732), (43, 1887340), (52, 1560685), (61, 1330420), (65, 1248548), (68, 1193465), (70, 1159366), (85, 954772), (86, 943670), (91, 891820), (119, 681980), (122, 665210), (130, 624274), (140, 579683), (170, 477386), (172, 471835), (182, 445910), (215, 377468), (221, 367220), (238, 340990), (244, 332605), (260, 312137), (301, 269620), (305, 266084), (340, 238693), (364, 222955), (427, 190060), (430, 188734), (442, 183610), (455, 178364), (476, 170495), (559, 145180), (595, 136396), (602, 134810), (610, 133042), (731, 111020), (793, 102340), (854, 95030), (860, 94367), (884, 91805), (910, 89182), (1037, 78260), (1105, 73444), (1118, 72590), (1190, 68198), (1204, 67405), (1220, 66521), (1462, 55510), (1505, 53924), (1547, 52460), (1586, 51170), (1708, 47515), (1820, 44591), (2074, 39130), (2135, 38012), (2210, 36722), (2236, 36295), (2380, 34099), (2623, 30940), (2795, 29036), (2924, 27755), (3010, 26962), (3094, 26230), (3172, 25585), (3655, 22204), (3913, 20740), (3965, 20468), (4148, 19565), (4270, 19006), (4420, 18361), (5117, 15860), (5185, 15652), (5246, 15470), (5551, 14620), (5590, 14518), (6020, 13481), (6188, 13115), (7259, 11180), (7310, 11102), (7735, 10492), (7826, 10370), (7930, 10234), (8540, 9503)]