61217780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1361}}^1$

素因数の和:1556

約数の個数: 48

約数和(自身を含む): 139348944

約数和(自身を除く): 78131164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 692, 865, 1361, 1730, 2249, 2722, 3460, 4498, 5444, 6805, 8996, 11245, 13610, 17693, 22490, 27220, 35386, 44980, 70772, 88465, 176930, 235453, 353860, 470906, 941812, 1177265, 2354530, 3060889, 4709060, 6121778, 12243556, 15304445, 30608890, 61217780]

約数ペア:

[(1, 61217780), (2, 30608890), (4, 15304445), (5, 12243556), (10, 6121778), (13, 4709060), (20, 3060889), (26, 2354530), (52, 1177265), (65, 941812), (130, 470906), (173, 353860), (260, 235453), (346, 176930), (692, 88465), (865, 70772), (1361, 44980), (1730, 35386), (2249, 27220), (2722, 22490), (3460, 17693), (4498, 13610), (5444, 11245), (6805, 8996)]