201219820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1447}}^1$

素因数の和:1882

約数の個数: 48

約数和(自身を含む): 448822080

約数和(自身を除く): 247602260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 409, 818, 1447, 1636, 2045, 2894, 4090, 5788, 6953, 7235, 8180, 13906, 14470, 24599, 27812, 28940, 34765, 49198, 69530, 98396, 122995, 139060, 245990, 491980, 591823, 1183646, 2367292, 2959115, 5918230, 10060991, 11836460, 20121982, 40243964, 50304955, 100609910, 201219820]

約数ペア:

[(1, 201219820), (2, 100609910), (4, 50304955), (5, 40243964), (10, 20121982), (17, 11836460), (20, 10060991), (34, 5918230), (68, 2959115), (85, 2367292), (170, 1183646), (340, 591823), (409, 491980), (818, 245990), (1447, 139060), (1636, 122995), (2045, 98396), (2894, 69530), (4090, 49198), (5788, 34765), (6953, 28940), (7235, 27812), (8180, 24599), (13906, 14470)]