28435900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 67026960

約数和(自身を除く): 38591060

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 43, 50, 68, 85, 86, 100, 170, 172, 215, 340, 389, 425, 430, 731, 778, 850, 860, 1075, 1462, 1556, 1700, 1945, 2150, 2924, 3655, 3890, 4300, 6613, 7310, 7780, 9725, 13226, 14620, 16727, 18275, 19450, 26452, 33065, 33454, 36550, 38900, 66130, 66908, 73100, 83635, 132260, 165325, 167270, 284359, 330650, 334540, 418175, 568718, 661300, 836350, 1137436, 1421795, 1672700, 2843590, 5687180, 7108975, 14217950, 28435900]

約数ペア:

[(1, 28435900), (2, 14217950), (4, 7108975), (5, 5687180), (10, 2843590), (17, 1672700), (20, 1421795), (25, 1137436), (34, 836350), (43, 661300), (50, 568718), (68, 418175), (85, 334540), (86, 330650), (100, 284359), (170, 167270), (172, 165325), (215, 132260), (340, 83635), (389, 73100), (425, 66908), (430, 66130), (731, 38900), (778, 36550), (850, 33454), (860, 33065), (1075, 26452), (1462, 19450), (1556, 18275), (1700, 16727), (1945, 14620), (2150, 13226), (2924, 9725), (3655, 7780), (3890, 7310), (4300, 6613)]