20516110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 40671360

約数和(自身を除く): 20155250

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 229, 289, 310, 458, 527, 578, 1054, 1145, 1445, 2290, 2635, 2890, 3893, 5270, 7099, 7786, 8959, 14198, 17918, 19465, 35495, 38930, 44795, 66181, 70990, 89590, 120683, 132362, 241366, 330905, 603415, 661810, 1206830, 2051611, 4103222, 10258055, 20516110]

約数ペア:

[(1, 20516110), (2, 10258055), (5, 4103222), (10, 2051611), (17, 1206830), (31, 661810), (34, 603415), (62, 330905), (85, 241366), (155, 132362), (170, 120683), (229, 89590), (289, 70990), (310, 66181), (458, 44795), (527, 38930), (578, 35495), (1054, 19465), (1145, 17918), (1445, 14198), (2290, 8959), (2635, 7786), (2890, 7099), (3893, 5270)]