20123340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 58388400

約数和(自身を除く): 38265060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 349, 372, 465, 620, 698, 930, 961, 1047, 1396, 1745, 1860, 1922, 2094, 2883, 3490, 3844, 4188, 4805, 5235, 5766, 6980, 9610, 10470, 10819, 11532, 14415, 19220, 20940, 21638, 28830, 32457, 43276, 54095, 57660, 64914, 108190, 129828, 162285, 216380, 324570, 335389, 649140, 670778, 1006167, 1341556, 1676945, 2012334, 3353890, 4024668, 5030835, 6707780, 10061670, 20123340]

約数ペア:

[(1, 20123340), (2, 10061670), (3, 6707780), (4, 5030835), (5, 4024668), (6, 3353890), (10, 2012334), (12, 1676945), (15, 1341556), (20, 1006167), (30, 670778), (31, 649140), (60, 335389), (62, 324570), (93, 216380), (124, 162285), (155, 129828), (186, 108190), (310, 64914), (349, 57660), (372, 54095), (465, 43276), (620, 32457), (698, 28830), (930, 21638), (961, 20940), (1047, 19220), (1396, 14415), (1745, 11532), (1860, 10819), (1922, 10470), (2094, 9610), (2883, 6980), (3490, 5766), (3844, 5235), (4188, 4805)]