290428502

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{38921}}^1$

素因数の和:38984

約数の個数: 32

約数和(自身を含む): 549267264

約数和(自身を除く): 258838762

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 182, 287, 533, 574, 1066, 3731, 7462, 38921, 77842, 272447, 505973, 544894, 1011946, 1595761, 3191522, 3541811, 7083622, 11170327, 20744893, 22340654, 41489786, 145214251, 290428502]

約数ペア:

[(1, 290428502), (2, 145214251), (7, 41489786), (13, 22340654), (14, 20744893), (26, 11170327), (41, 7083622), (82, 3541811), (91, 3191522), (182, 1595761), (287, 1011946), (533, 544894), (574, 505973), (1066, 272447), (3731, 77842), (7462, 38921)]