80640180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 216

約数和(自身を含む): 277090632

約数和(自身を除く): 196450452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 73, 76, 85, 90, 95, 102, 114, 146, 153, 170, 171, 180, 190, 204, 219, 228, 255, 285, 292, 306, 323, 340, 342, 361, 365, 380, 438, 510, 570, 612, 646, 657, 684, 722, 730, 765, 855, 876, 969, 1020, 1083, 1095, 1140, 1241, 1292, 1314, 1387, 1444, 1460, 1530, 1615, 1710, 1805, 1938, 2166, 2190, 2482, 2628, 2774, 2907, 3060, 3230, 3249, 3285, 3420, 3610, 3723, 3876, 4161, 4332, 4380, 4845, 4964, 5415, 5548, 5814, 6137, 6205, 6460, 6498, 6570, 6935, 7220, 7446, 8322, 9690, 10830, 11169, 11628, 12274, 12410, 12483, 12996, 13140, 13870, 14535, 14892, 16245, 16644, 18411, 18615, 19380, 20805, 21660, 22338, 23579, 24548, 24820, 24966, 26353, 27740, 29070, 30685, 32490, 36822, 37230, 41610, 44676, 47158, 49932, 52706, 55233, 55845, 58140, 61370, 62415, 64980, 70737, 73644, 74460, 79059, 83220, 92055, 94316, 105412, 110466, 111690, 117895, 122740, 124830, 131765, 141474, 158118, 184110, 212211, 220932, 223380, 235790, 237177, 249660, 263530, 276165, 282948, 316236, 353685, 368220, 395295, 424422, 448001, 471580, 474354, 527060, 552330, 707370, 790590, 848844, 896002, 948708, 1061055, 1104660, 1185885, 1344003, 1414740, 1581180, 1792004, 2122110, 2240005, 2371770, 2688006, 4032009, 4244220, 4480010, 4743540, 5376012, 6720015, 8064018, 8960020, 13440030, 16128036, 20160045, 26880060, 40320090, 80640180]

約数ペア:

[(1, 80640180), (2, 40320090), (3, 26880060), (4, 20160045), (5, 16128036), (6, 13440030), (9, 8960020), (10, 8064018), (12, 6720015), (15, 5376012), (17, 4743540), (18, 4480010), (19, 4244220), (20, 4032009), (30, 2688006), (34, 2371770), (36, 2240005), (38, 2122110), (45, 1792004), (51, 1581180), (57, 1414740), (60, 1344003), (68, 1185885), (73, 1104660), (76, 1061055), (85, 948708), (90, 896002), (95, 848844), (102, 790590), (114, 707370), (146, 552330), (153, 527060), (170, 474354), (171, 471580), (180, 448001), (190, 424422), (204, 395295), (219, 368220), (228, 353685), (255, 316236), (285, 282948), (292, 276165), (306, 263530), (323, 249660), (340, 237177), (342, 235790), (361, 223380), (365, 220932), (380, 212211), (438, 184110), (510, 158118), (570, 141474), (612, 131765), (646, 124830), (657, 122740), (684, 117895), (722, 111690), (730, 110466), (765, 105412), (855, 94316), (876, 92055), (969, 83220), (1020, 79059), (1083, 74460), (1095, 73644), (1140, 70737), (1241, 64980), (1292, 62415), (1314, 61370), (1387, 58140), (1444, 55845), (1460, 55233), (1530, 52706), (1615, 49932), (1710, 47158), (1805, 44676), (1938, 41610), (2166, 37230), (2190, 36822), (2482, 32490), (2628, 30685), (2774, 29070), (2907, 27740), (3060, 26353), (3230, 24966), (3249, 24820), (3285, 24548), (3420, 23579), (3610, 22338), (3723, 21660), (3876, 20805), (4161, 19380), (4332, 18615), (4380, 18411), (4845, 16644), (4964, 16245), (5415, 14892), (5548, 14535), (5814, 13870), (6137, 13140), (6205, 12996), (6460, 12483), (6498, 12410), (6570, 12274), (6935, 11628), (7220, 11169), (7446, 10830), (8322, 9690)]