681700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:432

約数の個数: 36

約数和(自身を含む): 1570212

約数和(自身を除く): 888512

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 401, 425, 802, 850, 1604, 1700, 2005, 4010, 6817, 8020, 10025, 13634, 20050, 27268, 34085, 40100, 68170, 136340, 170425, 340850, 681700]

約数ペア:

[(1, 681700), (2, 340850), (4, 170425), (5, 136340), (10, 68170), (17, 40100), (20, 34085), (25, 27268), (34, 20050), (50, 13634), (68, 10025), (85, 8020), (100, 6817), (170, 4010), (340, 2005), (401, 1700), (425, 1604), (802, 850)]