249806680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 128

約数和(自身を含む): 638668800

約数和(自身を除く): 388862120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 31, 38, 40, 46, 62, 76, 92, 95, 115, 124, 152, 155, 184, 190, 230, 248, 310, 380, 437, 460, 461, 589, 620, 713, 760, 874, 920, 922, 1178, 1240, 1426, 1748, 1844, 2185, 2305, 2356, 2852, 2945, 3496, 3565, 3688, 4370, 4610, 4712, 5704, 5890, 7130, 8740, 8759, 9220, 10603, 11780, 13547, 14260, 14291, 17480, 17518, 18440, 21206, 23560, 27094, 28520, 28582, 35036, 42412, 43795, 53015, 54188, 57164, 67735, 70072, 71455, 84824, 87590, 106030, 108376, 114328, 135470, 142910, 175180, 201457, 212060, 270940, 271529, 285820, 328693, 350360, 402914, 424120, 541880, 543058, 571640, 657386, 805828, 1007285, 1086116, 1314772, 1357645, 1611656, 1643465, 2014570, 2172232, 2629544, 2715290, 3286930, 4029140, 5430580, 6245167, 6573860, 8058280, 10861160, 12490334, 13147720, 24980668, 31225835, 49961336, 62451670, 124903340, 249806680]

約数ペア:

[(1, 249806680), (2, 124903340), (4, 62451670), (5, 49961336), (8, 31225835), (10, 24980668), (19, 13147720), (20, 12490334), (23, 10861160), (31, 8058280), (38, 6573860), (40, 6245167), (46, 5430580), (62, 4029140), (76, 3286930), (92, 2715290), (95, 2629544), (115, 2172232), (124, 2014570), (152, 1643465), (155, 1611656), (184, 1357645), (190, 1314772), (230, 1086116), (248, 1007285), (310, 805828), (380, 657386), (437, 571640), (460, 543058), (461, 541880), (589, 424120), (620, 402914), (713, 350360), (760, 328693), (874, 285820), (920, 271529), (922, 270940), (1178, 212060), (1240, 201457), (1426, 175180), (1748, 142910), (1844, 135470), (2185, 114328), (2305, 108376), (2356, 106030), (2852, 87590), (2945, 84824), (3496, 71455), (3565, 70072), (3688, 67735), (4370, 57164), (4610, 54188), (4712, 53015), (5704, 43795), (5890, 42412), (7130, 35036), (8740, 28582), (8759, 28520), (9220, 27094), (10603, 23560), (11780, 21206), (13547, 18440), (14260, 17518), (14291, 17480)]