1212131375980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8269}}^1\times {\mathrm{149579}}^1$

素因数の和:157871

約数の個数: 72

約数和(自身を含む): 2961441680400

約数和(自身を除く): 1749310304420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8269, 16538, 33076, 41345, 57883, 82690, 115766, 149579, 165380, 231532, 289415, 299158, 405181, 578830, 598316, 747895, 810362, 1047053, 1157660, 1495790, 1620724, 2025905, 2094106, 2991580, 4051810, 4188212, 5235265, 7329371, 8103620, 10470530, 14658742, 20941060, 29317484, 36646855, 73293710, 146587420, 1236868751, 2473737502, 4947475004, 6184343755, 8658081257, 12368687510, 17316162514, 24737375020, 34632325028, 43290406285, 60606568799, 86580812570, 121213137598, 173161625140, 242426275196, 303032843995, 606065687990, 1212131375980]

約数ペア:

[(1, 1212131375980), (2, 606065687990), (4, 303032843995), (5, 242426275196), (7, 173161625140), (10, 121213137598), (14, 86580812570), (20, 60606568799), (28, 43290406285), (35, 34632325028), (49, 24737375020), (70, 17316162514), (98, 12368687510), (140, 8658081257), (196, 6184343755), (245, 4947475004), (490, 2473737502), (980, 1236868751), (8269, 146587420), (16538, 73293710), (33076, 36646855), (41345, 29317484), (57883, 20941060), (82690, 14658742), (115766, 10470530), (149579, 8103620), (165380, 7329371), (231532, 5235265), (289415, 4188212), (299158, 4051810), (405181, 2991580), (578830, 2094106), (598316, 2025905), (747895, 1620724), (810362, 1495790), (1047053, 1157660)]