31485280

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10357}}^1$

素因数の和:10391

約数の個数: 48

約数和(自身を含む): 78306480

約数和(自身を除く): 46821200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 10357, 20714, 41428, 51785, 82856, 103570, 165712, 196783, 207140, 331424, 393566, 414280, 787132, 828560, 983915, 1574264, 1657120, 1967830, 3148528, 3935660, 6297056, 7871320, 15742640, 31485280]

約数ペア:

[(1, 31485280), (2, 15742640), (4, 7871320), (5, 6297056), (8, 3935660), (10, 3148528), (16, 1967830), (19, 1657120), (20, 1574264), (32, 983915), (38, 828560), (40, 787132), (76, 414280), (80, 393566), (95, 331424), (152, 207140), (160, 196783), (190, 165712), (304, 103570), (380, 82856), (608, 51785), (760, 41428), (1520, 20714), (3040, 10357)]