81160020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1249}}^1$

素因数の和:1302

約数の個数: 108

約数和(自身を含む): 260032500

約数和(自身を除く): 178872480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 361, 380, 570, 684, 722, 855, 1083, 1140, 1249, 1444, 1710, 1805, 2166, 2498, 3249, 3420, 3610, 3747, 4332, 4996, 5415, 6245, 6498, 7220, 7494, 10830, 11241, 12490, 12996, 14988, 16245, 18735, 21660, 22482, 23731, 24980, 32490, 37470, 44964, 47462, 56205, 64980, 71193, 74940, 94924, 112410, 118655, 142386, 213579, 224820, 237310, 284772, 355965, 427158, 450889, 474620, 711930, 854316, 901778, 1067895, 1352667, 1423860, 1803556, 2135790, 2254445, 2705334, 4058001, 4271580, 4508890, 5410668, 6763335, 8116002, 9017780, 13526670, 16232004, 20290005, 27053340, 40580010, 81160020]

約数ペア:

[(1, 81160020), (2, 40580010), (3, 27053340), (4, 20290005), (5, 16232004), (6, 13526670), (9, 9017780), (10, 8116002), (12, 6763335), (15, 5410668), (18, 4508890), (19, 4271580), (20, 4058001), (30, 2705334), (36, 2254445), (38, 2135790), (45, 1803556), (57, 1423860), (60, 1352667), (76, 1067895), (90, 901778), (95, 854316), (114, 711930), (171, 474620), (180, 450889), (190, 427158), (228, 355965), (285, 284772), (342, 237310), (361, 224820), (380, 213579), (570, 142386), (684, 118655), (722, 112410), (855, 94924), (1083, 74940), (1140, 71193), (1249, 64980), (1444, 56205), (1710, 47462), (1805, 44964), (2166, 37470), (2498, 32490), (3249, 24980), (3420, 23731), (3610, 22482), (3747, 21660), (4332, 18735), (4996, 16245), (5415, 14988), (6245, 12996), (6498, 12490), (7220, 11241), (7494, 10830)]