31520580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 192

約数和(自身を含む): 113799168

約数和(自身を除く): 82278588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 23, 26, 28, 30, 35, 39, 42, 46, 52, 60, 65, 69, 70, 78, 84, 91, 92, 105, 115, 130, 138, 140, 156, 161, 182, 195, 210, 230, 251, 260, 273, 276, 299, 322, 345, 364, 390, 420, 455, 460, 483, 502, 546, 598, 644, 690, 753, 780, 805, 897, 910, 966, 1004, 1092, 1196, 1255, 1365, 1380, 1495, 1506, 1610, 1757, 1794, 1820, 1932, 2093, 2415, 2510, 2730, 2990, 3012, 3220, 3263, 3514, 3588, 3765, 4186, 4485, 4830, 5020, 5271, 5460, 5773, 5980, 6279, 6526, 7028, 7530, 8372, 8785, 8970, 9660, 9789, 10465, 10542, 11546, 12558, 13052, 15060, 16315, 17319, 17570, 17940, 19578, 20930, 21084, 22841, 23092, 25116, 26355, 28865, 31395, 32630, 34638, 35140, 39156, 40411, 41860, 45682, 48945, 52710, 57730, 62790, 65260, 68523, 69276, 75049, 80822, 86595, 91364, 97890, 105420, 114205, 115460, 121233, 125580, 137046, 150098, 161644, 173190, 195780, 202055, 225147, 228410, 242466, 274092, 300196, 342615, 346380, 375245, 404110, 450294, 456820, 484932, 525343, 606165, 685230, 750490, 808220, 900588, 1050686, 1125735, 1212330, 1370460, 1500980, 1576029, 2101372, 2251470, 2424660, 2626715, 3152058, 4502940, 5253430, 6304116, 7880145, 10506860, 15760290, 31520580]

約数ペア:

[(1, 31520580), (2, 15760290), (3, 10506860), (4, 7880145), (5, 6304116), (6, 5253430), (7, 4502940), (10, 3152058), (12, 2626715), (13, 2424660), (14, 2251470), (15, 2101372), (20, 1576029), (21, 1500980), (23, 1370460), (26, 1212330), (28, 1125735), (30, 1050686), (35, 900588), (39, 808220), (42, 750490), (46, 685230), (52, 606165), (60, 525343), (65, 484932), (69, 456820), (70, 450294), (78, 404110), (84, 375245), (91, 346380), (92, 342615), (105, 300196), (115, 274092), (130, 242466), (138, 228410), (140, 225147), (156, 202055), (161, 195780), (182, 173190), (195, 161644), (210, 150098), (230, 137046), (251, 125580), (260, 121233), (273, 115460), (276, 114205), (299, 105420), (322, 97890), (345, 91364), (364, 86595), (390, 80822), (420, 75049), (455, 69276), (460, 68523), (483, 65260), (502, 62790), (546, 57730), (598, 52710), (644, 48945), (690, 45682), (753, 41860), (780, 40411), (805, 39156), (897, 35140), (910, 34638), (966, 32630), (1004, 31395), (1092, 28865), (1196, 26355), (1255, 25116), (1365, 23092), (1380, 22841), (1495, 21084), (1506, 20930), (1610, 19578), (1757, 17940), (1794, 17570), (1820, 17319), (1932, 16315), (2093, 15060), (2415, 13052), (2510, 12558), (2730, 11546), (2990, 10542), (3012, 10465), (3220, 9789), (3263, 9660), (3514, 8970), (3588, 8785), (3765, 8372), (4186, 7530), (4485, 7028), (4830, 6526), (5020, 6279), (5271, 5980), (5460, 5773)]