20173965140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:658

約数の個数: 192

約数和(自身を含む): 50849745408

約数和(自身を除く): 30675780268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 61, 70, 86, 122, 137, 140, 172, 215, 244, 274, 301, 305, 401, 427, 430, 548, 602, 610, 685, 802, 854, 860, 959, 1204, 1220, 1370, 1505, 1604, 1708, 1918, 2005, 2135, 2623, 2740, 2807, 3010, 3836, 4010, 4270, 4795, 5246, 5614, 5891, 6020, 8020, 8357, 8540, 9590, 10492, 11228, 11782, 13115, 14035, 16714, 17243, 18361, 19180, 23564, 24461, 26230, 28070, 29455, 33428, 34486, 36722, 41237, 41785, 48922, 52460, 54937, 56140, 58499, 58910, 68972, 73444, 82474, 83570, 86215, 91805, 97844, 109874, 116998, 117820, 120701, 122305, 164948, 167140, 171227, 172430, 183610, 206185, 219748, 233996, 241402, 244610, 274685, 292495, 342454, 344860, 359351, 367220, 384559, 412370, 482804, 489220, 549370, 584990, 603505, 684908, 718702, 769118, 824740, 856135, 1051823, 1098740, 1169980, 1207010, 1437404, 1538236, 1712270, 1796755, 1922795, 2103646, 2362291, 2414020, 2515457, 3351157, 3424540, 3593510, 3845590, 4207292, 4724582, 5030914, 5259115, 6702314, 7187020, 7362761, 7691180, 9449164, 10061828, 10518230, 11811455, 12577285, 13404628, 14725522, 16536037, 16755785, 21036460, 23458099, 23622910, 25154570, 29451044, 33072074, 33511570, 36813805, 46916198, 47245820, 50309140, 66144148, 67023140, 73627610, 82680185, 93832396, 117290495, 144099751, 147255220, 165360370, 234580990, 288199502, 330720740, 469161980, 576399004, 720498755, 1008698257, 1440997510, 2017396514, 2881995020, 4034793028, 5043491285, 10086982570, 20173965140]

約数ペア:

[(1, 20173965140), (2, 10086982570), (4, 5043491285), (5, 4034793028), (7, 2881995020), (10, 2017396514), (14, 1440997510), (20, 1008698257), (28, 720498755), (35, 576399004), (43, 469161980), (61, 330720740), (70, 288199502), (86, 234580990), (122, 165360370), (137, 147255220), (140, 144099751), (172, 117290495), (215, 93832396), (244, 82680185), (274, 73627610), (301, 67023140), (305, 66144148), (401, 50309140), (427, 47245820), (430, 46916198), (548, 36813805), (602, 33511570), (610, 33072074), (685, 29451044), (802, 25154570), (854, 23622910), (860, 23458099), (959, 21036460), (1204, 16755785), (1220, 16536037), (1370, 14725522), (1505, 13404628), (1604, 12577285), (1708, 11811455), (1918, 10518230), (2005, 10061828), (2135, 9449164), (2623, 7691180), (2740, 7362761), (2807, 7187020), (3010, 6702314), (3836, 5259115), (4010, 5030914), (4270, 4724582), (4795, 4207292), (5246, 3845590), (5614, 3593510), (5891, 3424540), (6020, 3351157), (8020, 2515457), (8357, 2414020), (8540, 2362291), (9590, 2103646), (10492, 1922795), (11228, 1796755), (11782, 1712270), (13115, 1538236), (14035, 1437404), (16714, 1207010), (17243, 1169980), (18361, 1098740), (19180, 1051823), (23564, 856135), (24461, 824740), (26230, 769118), (28070, 718702), (29455, 684908), (33428, 603505), (34486, 584990), (36722, 549370), (41237, 489220), (41785, 482804), (48922, 412370), (52460, 384559), (54937, 367220), (56140, 359351), (58499, 344860), (58910, 342454), (68972, 292495), (73444, 274685), (82474, 244610), (83570, 241402), (86215, 233996), (91805, 219748), (97844, 206185), (109874, 183610), (116998, 172430), (117820, 171227), (120701, 167140), (122305, 164948)]