397883920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{101501}}^1$

素因数の和:101528

約数の個数: 60

約数和(自身を含む): 1076124204

約数和(自身を除く): 678240284

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 101501, 203002, 406004, 507505, 710507, 812008, 1015010, 1421014, 1624016, 2030020, 2842028, 3552535, 4060040, 4973549, 5684056, 7105070, 8120080, 9947098, 11368112, 14210140, 19894196, 24867745, 28420280, 39788392, 49735490, 56840560, 79576784, 99470980, 198941960, 397883920]

約数ペア:

[(1, 397883920), (2, 198941960), (4, 99470980), (5, 79576784), (7, 56840560), (8, 49735490), (10, 39788392), (14, 28420280), (16, 24867745), (20, 19894196), (28, 14210140), (35, 11368112), (40, 9947098), (49, 8120080), (56, 7105070), (70, 5684056), (80, 4973549), (98, 4060040), (112, 3552535), (140, 2842028), (196, 2030020), (245, 1624016), (280, 1421014), (392, 1015010), (490, 812008), (560, 710507), (784, 507505), (980, 406004), (1960, 203002), (3920, 101501)]