214979420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{1289}}^1$

素因数の和:1598

約数の個数: 48

約数和(自身を含む): 468115200

約数和(自身を除く): 253135780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 269, 310, 538, 620, 1076, 1289, 1345, 2578, 2690, 5156, 5380, 6445, 8339, 12890, 16678, 25780, 33356, 39959, 41695, 79918, 83390, 159836, 166780, 199795, 346741, 399590, 693482, 799180, 1386964, 1733705, 3467410, 6934820, 10748971, 21497942, 42995884, 53744855, 107489710, 214979420]

約数ペア:

[(1, 214979420), (2, 107489710), (4, 53744855), (5, 42995884), (10, 21497942), (20, 10748971), (31, 6934820), (62, 3467410), (124, 1733705), (155, 1386964), (269, 799180), (310, 693482), (538, 399590), (620, 346741), (1076, 199795), (1289, 166780), (1345, 159836), (2578, 83390), (2690, 79918), (5156, 41695), (5380, 39959), (6445, 33356), (8339, 25780), (12890, 16678)]