20110512100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1\times {\mathrm{1549}}^1$

素因数の和:2678

約数の個数: 144

約数和(自身を含む): 52890364800

約数和(自身を除く): 32779852700

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 175, 238, 340, 350, 425, 476, 595, 700, 850, 1091, 1190, 1549, 1700, 2182, 2380, 2975, 3098, 4364, 5455, 5950, 6196, 7637, 7745, 10843, 10910, 11900, 15274, 15490, 18547, 21686, 21820, 26333, 27275, 30548, 30980, 37094, 38185, 38725, 43372, 52666, 54215, 54550, 74188, 76370, 77450, 92735, 105332, 108430, 109100, 129829, 131665, 152740, 154900, 184331, 185470, 190925, 216860, 259658, 263330, 271075, 368662, 370940, 381850, 463675, 519316, 526660, 542150, 649145, 658325, 737324, 763700, 921655, 927350, 1084300, 1298290, 1316650, 1689959, 1843310, 1854700, 2596580, 2633300, 3245725, 3379918, 3686620, 4608275, 6491450, 6759836, 8449795, 9216550, 11829713, 12982900, 16899590, 18433100, 23659426, 28729303, 33799180, 42248975, 47318852, 57458606, 59148565, 84497950, 114917212, 118297130, 143646515, 168995900, 201105121, 236594260, 287293030, 295742825, 402210242, 574586060, 591485650, 718232575, 804420484, 1005525605, 1182971300, 1436465150, 2011051210, 2872930300, 4022102420, 5027628025, 10055256050, 20110512100]

約数ペア:

[(1, 20110512100), (2, 10055256050), (4, 5027628025), (5, 4022102420), (7, 2872930300), (10, 2011051210), (14, 1436465150), (17, 1182971300), (20, 1005525605), (25, 804420484), (28, 718232575), (34, 591485650), (35, 574586060), (50, 402210242), (68, 295742825), (70, 287293030), (85, 236594260), (100, 201105121), (119, 168995900), (140, 143646515), (170, 118297130), (175, 114917212), (238, 84497950), (340, 59148565), (350, 57458606), (425, 47318852), (476, 42248975), (595, 33799180), (700, 28729303), (850, 23659426), (1091, 18433100), (1190, 16899590), (1549, 12982900), (1700, 11829713), (2182, 9216550), (2380, 8449795), (2975, 6759836), (3098, 6491450), (4364, 4608275), (5455, 3686620), (5950, 3379918), (6196, 3245725), (7637, 2633300), (7745, 2596580), (10843, 1854700), (10910, 1843310), (11900, 1689959), (15274, 1316650), (15490, 1298290), (18547, 1084300), (21686, 927350), (21820, 921655), (26333, 763700), (27275, 737324), (30548, 658325), (30980, 649145), (37094, 542150), (38185, 526660), (38725, 519316), (43372, 463675), (52666, 381850), (54215, 370940), (54550, 368662), (74188, 271075), (76370, 263330), (77450, 259658), (92735, 216860), (105332, 190925), (108430, 185470), (109100, 184331), (129829, 154900), (131665, 152740)]