28775750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 57507840

約数和(自身を除く): 28732090

約数列:

[1, 2, 5, 10, 25, 31, 47, 50, 62, 79, 94, 125, 155, 158, 235, 250, 310, 395, 470, 775, 790, 1175, 1457, 1550, 1975, 2350, 2449, 2914, 3713, 3875, 3950, 4898, 5875, 7285, 7426, 7750, 9875, 11750, 12245, 14570, 18565, 19750, 24490, 36425, 37130, 61225, 72850, 92825, 115103, 122450, 182125, 185650, 230206, 306125, 364250, 464125, 575515, 612250, 928250, 1151030, 2877575, 5755150, 14387875, 28775750]

約数ペア:

[(1, 28775750), (2, 14387875), (5, 5755150), (10, 2877575), (25, 1151030), (31, 928250), (47, 612250), (50, 575515), (62, 464125), (79, 364250), (94, 306125), (125, 230206), (155, 185650), (158, 182125), (235, 122450), (250, 115103), (310, 92825), (395, 72850), (470, 61225), (775, 37130), (790, 36425), (1175, 24490), (1457, 19750), (1550, 18565), (1975, 14570), (2350, 12245), (2449, 11750), (2914, 9875), (3713, 7750), (3875, 7426), (3950, 7285), (4898, 5875)]