20515743905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{11839}}^1$

素因数の和:11946

約数の個数: 64

約数和(自身を含む): 29154816000

約数和(自身を除く): 8639072095

約数列:

[1, 5, 17, 19, 29, 37, 85, 95, 145, 185, 323, 493, 551, 629, 703, 1073, 1615, 2465, 2755, 3145, 3515, 5365, 9367, 11839, 11951, 18241, 20387, 46835, 59195, 59755, 91205, 101935, 201263, 224941, 343331, 346579, 438043, 1006315, 1124705, 1716655, 1732895, 2190215, 3823997, 5836627, 6523289, 7446731, 8322817, 12703247, 19119985, 29183135, 32616445, 37233655, 41614085, 63516235, 110895913, 141487889, 215955199, 241361693, 554479565, 707439445, 1079775995, 1206808465, 4103148781, 20515743905]

約数ペア:

[(1, 20515743905), (5, 4103148781), (17, 1206808465), (19, 1079775995), (29, 707439445), (37, 554479565), (85, 241361693), (95, 215955199), (145, 141487889), (185, 110895913), (323, 63516235), (493, 41614085), (551, 37233655), (629, 32616445), (703, 29183135), (1073, 19119985), (1615, 12703247), (2465, 8322817), (2755, 7446731), (3145, 6523289), (3515, 5836627), (5365, 3823997), (9367, 2190215), (11839, 1732895), (11951, 1716655), (18241, 1124705), (20387, 1006315), (46835, 438043), (59195, 346579), (59755, 343331), (91205, 224941), (101935, 201263)]