172980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^2$

素因数の和:77

約数の個数: 54

約数和(自身を含む): 542178

約数和(自身を除く): 369198

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 961, 1116, 1395, 1860, 1922, 2790, 2883, 3844, 4805, 5580, 5766, 8649, 9610, 11532, 14415, 17298, 19220, 28830, 34596, 43245, 57660, 86490, 172980]

約数ペア:

[(1, 172980), (2, 86490), (3, 57660), (4, 43245), (5, 34596), (6, 28830), (9, 19220), (10, 17298), (12, 14415), (15, 11532), (18, 9610), (20, 8649), (30, 5766), (31, 5580), (36, 4805), (45, 3844), (60, 2883), (62, 2790), (90, 1922), (93, 1860), (124, 1395), (155, 1116), (180, 961), (186, 930), (279, 620), (310, 558), (372, 465)]