200054990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 395599680

約数和(自身を除く): 195544690

約数列:

[1, 2, 5, 10, 19, 38, 41, 61, 82, 95, 122, 190, 205, 305, 410, 421, 610, 779, 842, 1159, 1558, 2105, 2318, 2501, 3895, 4210, 5002, 5795, 7790, 7999, 11590, 12505, 15998, 17261, 25010, 25681, 34522, 39995, 47519, 51362, 79990, 86305, 95038, 128405, 172610, 237595, 256810, 327959, 475190, 487939, 655918, 975878, 1052921, 1639795, 2105842, 2439695, 3279590, 4879390, 5264605, 10529210, 20005499, 40010998, 100027495, 200054990]

約数ペア:

[(1, 200054990), (2, 100027495), (5, 40010998), (10, 20005499), (19, 10529210), (38, 5264605), (41, 4879390), (61, 3279590), (82, 2439695), (95, 2105842), (122, 1639795), (190, 1052921), (205, 975878), (305, 655918), (410, 487939), (421, 475190), (610, 327959), (779, 256810), (842, 237595), (1159, 172610), (1558, 128405), (2105, 95038), (2318, 86305), (2501, 79990), (3895, 51362), (4210, 47519), (5002, 39995), (5795, 34522), (7790, 25681), (7999, 25010), (11590, 17261), (12505, 15998)]