28578280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1274

約数の個数: 64

約数和(自身を含む): 69926400

約数和(自身を除く): 41348120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1213, 1240, 2356, 2426, 2945, 4712, 4852, 5890, 6065, 9704, 11780, 12130, 23047, 23560, 24260, 37603, 46094, 48520, 75206, 92188, 115235, 150412, 184376, 188015, 230470, 300824, 376030, 460940, 714457, 752060, 921880, 1428914, 1504120, 2857828, 3572285, 5715656, 7144570, 14289140, 28578280]

約数ペア:

[(1, 28578280), (2, 14289140), (4, 7144570), (5, 5715656), (8, 3572285), (10, 2857828), (19, 1504120), (20, 1428914), (31, 921880), (38, 752060), (40, 714457), (62, 460940), (76, 376030), (95, 300824), (124, 230470), (152, 188015), (155, 184376), (190, 150412), (248, 115235), (310, 92188), (380, 75206), (589, 48520), (620, 46094), (760, 37603), (1178, 24260), (1213, 23560), (1240, 23047), (2356, 12130), (2426, 11780), (2945, 9704), (4712, 6065), (4852, 5890)]