20386804540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{4691}}^1$

素因数の和:4915

約数の個数: 96

約数和(自身を含む): 45403545600

約数和(自身を除く): 25016741060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 127, 145, 236, 254, 290, 295, 508, 580, 590, 635, 1180, 1270, 1711, 2540, 3422, 3683, 4691, 6844, 7366, 7493, 8555, 9382, 14732, 14986, 17110, 18415, 18764, 23455, 29972, 34220, 36830, 37465, 46910, 73660, 74930, 93820, 136039, 149860, 217297, 272078, 276769, 434594, 544156, 553538, 595757, 680195, 869188, 1086485, 1107076, 1191514, 1360390, 1383845, 2172970, 2383028, 2720780, 2767690, 2978785, 4345940, 5535380, 5957570, 8026301, 11915140, 16052602, 17276953, 32105204, 34553906, 35149663, 40131505, 69107812, 70299326, 80263010, 86384765, 140598652, 160526020, 172769530, 175748315, 345539060, 351496630, 702993260, 1019340227, 2038680454, 4077360908, 5096701135, 10193402270, 20386804540]

約数ペア:

[(1, 20386804540), (2, 10193402270), (4, 5096701135), (5, 4077360908), (10, 2038680454), (20, 1019340227), (29, 702993260), (58, 351496630), (59, 345539060), (116, 175748315), (118, 172769530), (127, 160526020), (145, 140598652), (236, 86384765), (254, 80263010), (290, 70299326), (295, 69107812), (508, 40131505), (580, 35149663), (590, 34553906), (635, 32105204), (1180, 17276953), (1270, 16052602), (1711, 11915140), (2540, 8026301), (3422, 5957570), (3683, 5535380), (4691, 4345940), (6844, 2978785), (7366, 2767690), (7493, 2720780), (8555, 2383028), (9382, 2172970), (14732, 1383845), (14986, 1360390), (17110, 1191514), (18415, 1107076), (18764, 1086485), (23455, 869188), (29972, 680195), (34220, 595757), (36830, 553538), (37465, 544156), (46910, 434594), (73660, 276769), (74930, 272078), (93820, 217297), (136039, 149860)]