4402000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 80

約数和(自身を含む): 11142144

約数和(自身を除く): 6740144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 71, 80, 100, 124, 125, 142, 155, 200, 248, 250, 284, 310, 355, 400, 496, 500, 568, 620, 710, 775, 1000, 1136, 1240, 1420, 1550, 1775, 2000, 2201, 2480, 2840, 3100, 3550, 3875, 4402, 5680, 6200, 7100, 7750, 8804, 8875, 11005, 12400, 14200, 15500, 17608, 17750, 22010, 28400, 31000, 35216, 35500, 44020, 55025, 62000, 71000, 88040, 110050, 142000, 176080, 220100, 275125, 440200, 550250, 880400, 1100500, 2201000, 4402000]

約数ペア:

[(1, 4402000), (2, 2201000), (4, 1100500), (5, 880400), (8, 550250), (10, 440200), (16, 275125), (20, 220100), (25, 176080), (31, 142000), (40, 110050), (50, 88040), (62, 71000), (71, 62000), (80, 55025), (100, 44020), (124, 35500), (125, 35216), (142, 31000), (155, 28400), (200, 22010), (248, 17750), (250, 17608), (284, 15500), (310, 14200), (355, 12400), (400, 11005), (496, 8875), (500, 8804), (568, 7750), (620, 7100), (710, 6200), (775, 5680), (1000, 4402), (1136, 3875), (1240, 3550), (1420, 3100), (1550, 2840), (1775, 2480), (2000, 2201)]