19845210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 60715008

約数和(自身を除く): 40869798

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 71, 77, 105, 110, 121, 142, 154, 165, 210, 213, 231, 242, 330, 355, 363, 385, 426, 462, 497, 605, 710, 726, 770, 781, 847, 994, 1065, 1155, 1210, 1331, 1491, 1562, 1694, 1815, 2130, 2310, 2343, 2485, 2541, 2662, 2982, 3630, 3905, 3993, 4235, 4686, 4970, 5082, 5467, 6655, 7455, 7810, 7986, 8470, 8591, 9317, 10934, 11715, 12705, 13310, 14910, 16401, 17182, 18634, 19965, 23430, 25410, 25773, 27335, 27951, 32802, 39930, 42955, 46585, 51546, 54670, 55902, 60137, 82005, 85910, 93170, 94501, 120274, 128865, 139755, 164010, 180411, 189002, 257730, 279510, 283503, 300685, 360822, 472505, 567006, 601370, 661507, 902055, 945010, 1323014, 1417515, 1804110, 1984521, 2835030, 3307535, 3969042, 6615070, 9922605, 19845210]

約数ペア:

[(1, 19845210), (2, 9922605), (3, 6615070), (5, 3969042), (6, 3307535), (7, 2835030), (10, 1984521), (11, 1804110), (14, 1417515), (15, 1323014), (21, 945010), (22, 902055), (30, 661507), (33, 601370), (35, 567006), (42, 472505), (55, 360822), (66, 300685), (70, 283503), (71, 279510), (77, 257730), (105, 189002), (110, 180411), (121, 164010), (142, 139755), (154, 128865), (165, 120274), (210, 94501), (213, 93170), (231, 85910), (242, 82005), (330, 60137), (355, 55902), (363, 54670), (385, 51546), (426, 46585), (462, 42955), (497, 39930), (605, 32802), (710, 27951), (726, 27335), (770, 25773), (781, 25410), (847, 23430), (994, 19965), (1065, 18634), (1155, 17182), (1210, 16401), (1331, 14910), (1491, 13310), (1562, 12705), (1694, 11715), (1815, 10934), (2130, 9317), (2310, 8591), (2343, 8470), (2485, 7986), (2541, 7810), (2662, 7455), (2982, 6655), (3630, 5467), (3905, 5082), (3993, 4970), (4235, 4686)]