1815870280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1973}}^1$

素因数の和:2183

約数の個数: 128

約数和(自身を含む): 4946054400

約数和(自身を除く): 3130184120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 173, 190, 266, 280, 346, 380, 532, 665, 692, 760, 865, 1064, 1211, 1330, 1384, 1730, 1973, 2422, 2660, 3287, 3460, 3946, 4844, 5320, 6055, 6574, 6920, 7892, 9688, 9865, 12110, 13148, 13811, 15784, 16435, 19730, 23009, 24220, 26296, 27622, 32870, 37487, 39460, 46018, 48440, 55244, 65740, 69055, 74974, 78920, 92036, 110488, 115045, 131480, 138110, 149948, 184072, 187435, 230090, 262409, 276220, 299896, 341329, 374870, 460180, 524818, 552440, 682658, 749740, 920360, 1049636, 1312045, 1365316, 1499480, 1706645, 2099272, 2389303, 2624090, 2730632, 3413290, 4778606, 5248180, 6485251, 6826580, 9557212, 10496360, 11946515, 12970502, 13653160, 19114424, 23893030, 25941004, 32426255, 45396757, 47786060, 51882008, 64852510, 90793514, 95572120, 129705020, 181587028, 226983785, 259410040, 363174056, 453967570, 907935140, 1815870280]

約数ペア:

[(1, 1815870280), (2, 907935140), (4, 453967570), (5, 363174056), (7, 259410040), (8, 226983785), (10, 181587028), (14, 129705020), (19, 95572120), (20, 90793514), (28, 64852510), (35, 51882008), (38, 47786060), (40, 45396757), (56, 32426255), (70, 25941004), (76, 23893030), (95, 19114424), (133, 13653160), (140, 12970502), (152, 11946515), (173, 10496360), (190, 9557212), (266, 6826580), (280, 6485251), (346, 5248180), (380, 4778606), (532, 3413290), (665, 2730632), (692, 2624090), (760, 2389303), (865, 2099272), (1064, 1706645), (1211, 1499480), (1330, 1365316), (1384, 1312045), (1730, 1049636), (1973, 920360), (2422, 749740), (2660, 682658), (3287, 552440), (3460, 524818), (3946, 460180), (4844, 374870), (5320, 341329), (6055, 299896), (6574, 276220), (6920, 262409), (7892, 230090), (9688, 187435), (9865, 184072), (12110, 149948), (13148, 138110), (13811, 131480), (15784, 115045), (16435, 110488), (19730, 92036), (23009, 78920), (24220, 74974), (26296, 69055), (27622, 65740), (32870, 55244), (37487, 48440), (39460, 46018)]