77612220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2040

約数の個数: 144

約数和(自身を含む): 277874688

約数和(自身を除く): 200262468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 1987, 2170, 2604, 2790, 3255, 3906, 3974, 4340, 5580, 5961, 6510, 7812, 7948, 9765, 9935, 11922, 13020, 13909, 17883, 19530, 19870, 23844, 27818, 29805, 35766, 39060, 39740, 41727, 55636, 59610, 61597, 69545, 71532, 83454, 89415, 119220, 123194, 125181, 139090, 166908, 178830, 184791, 208635, 246388, 250362, 278180, 307985, 357660, 369582, 417270, 431179, 500724, 554373, 615970, 625905, 739164, 834540, 862358, 923955, 1108746, 1231940, 1251810, 1293537, 1724716, 1847910, 2155895, 2217492, 2503620, 2587074, 2771865, 3695820, 3880611, 4311790, 5174148, 5543730, 6467685, 7761222, 8623580, 11087460, 12935370, 15522444, 19403055, 25870740, 38806110, 77612220]

約数ペア:

[(1, 77612220), (2, 38806110), (3, 25870740), (4, 19403055), (5, 15522444), (6, 12935370), (7, 11087460), (9, 8623580), (10, 7761222), (12, 6467685), (14, 5543730), (15, 5174148), (18, 4311790), (20, 3880611), (21, 3695820), (28, 2771865), (30, 2587074), (31, 2503620), (35, 2217492), (36, 2155895), (42, 1847910), (45, 1724716), (60, 1293537), (62, 1251810), (63, 1231940), (70, 1108746), (84, 923955), (90, 862358), (93, 834540), (105, 739164), (124, 625905), (126, 615970), (140, 554373), (155, 500724), (180, 431179), (186, 417270), (210, 369582), (217, 357660), (252, 307985), (279, 278180), (310, 250362), (315, 246388), (372, 208635), (420, 184791), (434, 178830), (465, 166908), (558, 139090), (620, 125181), (630, 123194), (651, 119220), (868, 89415), (930, 83454), (1085, 71532), (1116, 69545), (1260, 61597), (1302, 59610), (1395, 55636), (1860, 41727), (1953, 39740), (1987, 39060), (2170, 35766), (2604, 29805), (2790, 27818), (3255, 23844), (3906, 19870), (3974, 19530), (4340, 17883), (5580, 13909), (5961, 13020), (6510, 11922), (7812, 9935), (7948, 9765)]