78123430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1429}}^1$

素因数の和:1525

約数の個数: 64

約数和(自身を含む): 177914880

約数和(自身を除く): 99791450

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 71, 77, 110, 142, 154, 355, 385, 497, 710, 770, 781, 994, 1429, 1562, 2485, 2858, 3905, 4970, 5467, 7145, 7810, 10003, 10934, 14290, 15719, 20006, 27335, 31438, 50015, 54670, 78595, 100030, 101459, 110033, 157190, 202918, 220066, 507295, 550165, 710213, 1014590, 1100330, 1116049, 1420426, 2232098, 3551065, 5580245, 7102130, 7812343, 11160490, 15624686, 39061715, 78123430]

約数ペア:

[(1, 78123430), (2, 39061715), (5, 15624686), (7, 11160490), (10, 7812343), (11, 7102130), (14, 5580245), (22, 3551065), (35, 2232098), (55, 1420426), (70, 1116049), (71, 1100330), (77, 1014590), (110, 710213), (142, 550165), (154, 507295), (355, 220066), (385, 202918), (497, 157190), (710, 110033), (770, 101459), (781, 100030), (994, 78595), (1429, 54670), (1562, 50015), (2485, 31438), (2858, 27335), (3905, 20006), (4970, 15719), (5467, 14290), (7145, 10934), (7810, 10003)]