631396220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^2$

素因数の和:129

約数の個数: 216

約数和(自身を含む): 1779678432

約数和(自身を除く): 1148282212

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 52, 62, 65, 70, 76, 91, 95, 124, 130, 133, 140, 155, 182, 190, 217, 247, 260, 266, 310, 361, 364, 380, 403, 434, 455, 494, 532, 589, 620, 665, 722, 806, 868, 910, 961, 988, 1085, 1178, 1235, 1330, 1444, 1612, 1729, 1805, 1820, 1922, 2015, 2170, 2356, 2470, 2527, 2660, 2821, 2945, 3458, 3610, 3844, 4030, 4123, 4340, 4693, 4805, 4940, 5054, 5642, 5890, 6727, 6916, 7220, 7657, 8060, 8246, 8645, 9386, 9610, 10108, 11191, 11284, 11780, 12493, 12635, 13454, 14105, 15314, 16492, 17290, 18259, 18772, 19220, 20615, 22382, 23465, 24986, 25270, 26908, 28210, 30628, 32851, 33635, 34580, 36518, 38285, 41230, 44764, 46930, 49972, 50540, 53599, 55955, 56420, 62465, 65702, 67270, 73036, 76570, 78337, 82460, 87451, 91295, 93860, 107198, 111910, 124930, 127813, 131404, 134540, 145483, 153140, 156674, 164255, 174902, 182590, 214396, 223820, 237367, 249860, 255626, 267995, 290966, 313348, 328510, 346921, 349804, 365180, 391685, 437255, 474734, 511252, 535990, 581932, 639065, 657020, 693842, 727415, 783370, 874510, 949468, 1018381, 1071980, 1186835, 1278130, 1387684, 1454830, 1566740, 1661569, 1734605, 1749020, 2036762, 2373670, 2428447, 2556260, 2909660, 3323138, 3469210, 4073524, 4509973, 4747340, 4856894, 5091905, 6646276, 6938420, 8307845, 9019946, 9713788, 10183810, 12142235, 16615690, 18039892, 20367620, 22549865, 24284470, 31569811, 33231380, 45099730, 48568940, 63139622, 90199460, 126279244, 157849055, 315698110, 631396220]

約数ペア:

[(1, 631396220), (2, 315698110), (4, 157849055), (5, 126279244), (7, 90199460), (10, 63139622), (13, 48568940), (14, 45099730), (19, 33231380), (20, 31569811), (26, 24284470), (28, 22549865), (31, 20367620), (35, 18039892), (38, 16615690), (52, 12142235), (62, 10183810), (65, 9713788), (70, 9019946), (76, 8307845), (91, 6938420), (95, 6646276), (124, 5091905), (130, 4856894), (133, 4747340), (140, 4509973), (155, 4073524), (182, 3469210), (190, 3323138), (217, 2909660), (247, 2556260), (260, 2428447), (266, 2373670), (310, 2036762), (361, 1749020), (364, 1734605), (380, 1661569), (403, 1566740), (434, 1454830), (455, 1387684), (494, 1278130), (532, 1186835), (589, 1071980), (620, 1018381), (665, 949468), (722, 874510), (806, 783370), (868, 727415), (910, 693842), (961, 657020), (988, 639065), (1085, 581932), (1178, 535990), (1235, 511252), (1330, 474734), (1444, 437255), (1612, 391685), (1729, 365180), (1805, 349804), (1820, 346921), (1922, 328510), (2015, 313348), (2170, 290966), (2356, 267995), (2470, 255626), (2527, 249860), (2660, 237367), (2821, 223820), (2945, 214396), (3458, 182590), (3610, 174902), (3844, 164255), (4030, 156674), (4123, 153140), (4340, 145483), (4693, 134540), (4805, 131404), (4940, 127813), (5054, 124930), (5642, 111910), (5890, 107198), (6727, 93860), (6916, 91295), (7220, 87451), (7657, 82460), (8060, 78337), (8246, 76570), (8645, 73036), (9386, 67270), (9610, 65702), (10108, 62465), (11191, 56420), (11284, 55955), (11780, 53599), (12493, 50540), (12635, 49972), (13454, 46930), (14105, 44764), (15314, 41230), (16492, 38285), (17290, 36518), (18259, 34580), (18772, 33635), (19220, 32851), (20615, 30628), (22382, 28210), (23465, 26908), (24986, 25270)]