881264020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:379

約数の個数: 216

約数和(自身を含む): 2476152504

約数和(自身を除く): 1594888484

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 49, 52, 65, 68, 70, 85, 91, 98, 119, 130, 140, 169, 170, 182, 196, 221, 238, 245, 260, 313, 338, 340, 364, 442, 455, 476, 490, 595, 626, 637, 676, 833, 845, 884, 910, 980, 1105, 1183, 1190, 1252, 1274, 1547, 1565, 1666, 1690, 1820, 2191, 2210, 2366, 2380, 2548, 2873, 3094, 3130, 3185, 3332, 3380, 4069, 4165, 4382, 4420, 4732, 5321, 5746, 5915, 6188, 6260, 6370, 7735, 8138, 8281, 8330, 8764, 10642, 10829, 10955, 11492, 11830, 12740, 14365, 15337, 15470, 16276, 16562, 16660, 20111, 20345, 21284, 21658, 21910, 23660, 26605, 28483, 28730, 30674, 30940, 33124, 37247, 40222, 40690, 41405, 43316, 43820, 52897, 53210, 54145, 56966, 57460, 61348, 69173, 74494, 76685, 80444, 81380, 82810, 100555, 105794, 106420, 108290, 113932, 138346, 140777, 142415, 148988, 153370, 165620, 186235, 199381, 201110, 211588, 216580, 260729, 264485, 276692, 281554, 284830, 306740, 345865, 370279, 372470, 398762, 402220, 484211, 521458, 528970, 563108, 569660, 691730, 703885, 740558, 744940, 797524, 899249, 968422, 996905, 1042916, 1057940, 1303645, 1383460, 1407770, 1481116, 1798498, 1851395, 1936844, 1993810, 2421055, 2591953, 2607290, 2815540, 3389477, 3596996, 3702790, 3987620, 4496245, 4842110, 5183906, 5214580, 6294743, 6778954, 7405580, 8992490, 9684220, 10367812, 12589486, 12959765, 13557908, 16947385, 17984980, 25178972, 25919530, 31473715, 33894770, 44063201, 51839060, 62947430, 67789540, 88126402, 125894860, 176252804, 220316005, 440632010, 881264020]

約数ペア:

[(1, 881264020), (2, 440632010), (4, 220316005), (5, 176252804), (7, 125894860), (10, 88126402), (13, 67789540), (14, 62947430), (17, 51839060), (20, 44063201), (26, 33894770), (28, 31473715), (34, 25919530), (35, 25178972), (49, 17984980), (52, 16947385), (65, 13557908), (68, 12959765), (70, 12589486), (85, 10367812), (91, 9684220), (98, 8992490), (119, 7405580), (130, 6778954), (140, 6294743), (169, 5214580), (170, 5183906), (182, 4842110), (196, 4496245), (221, 3987620), (238, 3702790), (245, 3596996), (260, 3389477), (313, 2815540), (338, 2607290), (340, 2591953), (364, 2421055), (442, 1993810), (455, 1936844), (476, 1851395), (490, 1798498), (595, 1481116), (626, 1407770), (637, 1383460), (676, 1303645), (833, 1057940), (845, 1042916), (884, 996905), (910, 968422), (980, 899249), (1105, 797524), (1183, 744940), (1190, 740558), (1252, 703885), (1274, 691730), (1547, 569660), (1565, 563108), (1666, 528970), (1690, 521458), (1820, 484211), (2191, 402220), (2210, 398762), (2366, 372470), (2380, 370279), (2548, 345865), (2873, 306740), (3094, 284830), (3130, 281554), (3185, 276692), (3332, 264485), (3380, 260729), (4069, 216580), (4165, 211588), (4382, 201110), (4420, 199381), (4732, 186235), (5321, 165620), (5746, 153370), (5915, 148988), (6188, 142415), (6260, 140777), (6370, 138346), (7735, 113932), (8138, 108290), (8281, 106420), (8330, 105794), (8764, 100555), (10642, 82810), (10829, 81380), (10955, 80444), (11492, 76685), (11830, 74494), (12740, 69173), (14365, 61348), (15337, 57460), (15470, 56966), (16276, 54145), (16562, 53210), (16660, 52897), (20111, 43820), (20345, 43316), (21284, 41405), (21658, 40690), (21910, 40222), (23660, 37247), (26605, 33124), (28483, 30940), (28730, 30674)]