19981350

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 59527440

約数和(自身を除く): 39546090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 27, 30, 38, 41, 45, 50, 54, 57, 75, 82, 90, 95, 114, 123, 135, 150, 171, 190, 205, 225, 246, 270, 285, 342, 361, 369, 410, 450, 475, 513, 570, 615, 675, 722, 738, 779, 855, 950, 1025, 1026, 1083, 1107, 1230, 1350, 1425, 1558, 1710, 1805, 1845, 2050, 2166, 2214, 2337, 2565, 2850, 3075, 3249, 3610, 3690, 3895, 4275, 4674, 5130, 5415, 5535, 6150, 6498, 7011, 7790, 8550, 9025, 9225, 9747, 10830, 11070, 11685, 12825, 14022, 14801, 16245, 18050, 18450, 19475, 19494, 21033, 23370, 25650, 27075, 27675, 29602, 32490, 35055, 38950, 42066, 44403, 48735, 54150, 55350, 58425, 70110, 74005, 81225, 88806, 97470, 105165, 116850, 133209, 148010, 162450, 175275, 210330, 222015, 243675, 266418, 350550, 370025, 399627, 444030, 487350, 525825, 666045, 740050, 799254, 1051650, 1110075, 1332090, 1998135, 2220150, 3330225, 3996270, 6660450, 9990675, 19981350]

約数ペア:

[(1, 19981350), (2, 9990675), (3, 6660450), (5, 3996270), (6, 3330225), (9, 2220150), (10, 1998135), (15, 1332090), (18, 1110075), (19, 1051650), (25, 799254), (27, 740050), (30, 666045), (38, 525825), (41, 487350), (45, 444030), (50, 399627), (54, 370025), (57, 350550), (75, 266418), (82, 243675), (90, 222015), (95, 210330), (114, 175275), (123, 162450), (135, 148010), (150, 133209), (171, 116850), (190, 105165), (205, 97470), (225, 88806), (246, 81225), (270, 74005), (285, 70110), (342, 58425), (361, 55350), (369, 54150), (410, 48735), (450, 44403), (475, 42066), (513, 38950), (570, 35055), (615, 32490), (675, 29602), (722, 27675), (738, 27075), (779, 25650), (855, 23370), (950, 21033), (1025, 19494), (1026, 19475), (1083, 18450), (1107, 18050), (1230, 16245), (1350, 14801), (1425, 14022), (1558, 12825), (1710, 11685), (1805, 11070), (1845, 10830), (2050, 9747), (2166, 9225), (2214, 9025), (2337, 8550), (2565, 7790), (2850, 7011), (3075, 6498), (3249, 6150), (3610, 5535), (3690, 5415), (3895, 5130), (4275, 4674)]