209138540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:939

約数の個数: 96

約数和(自身を含む): 506169216

約数和(自身を除く): 297030676

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 41, 46, 52, 65, 82, 92, 115, 130, 164, 205, 230, 260, 299, 410, 460, 533, 598, 820, 853, 943, 1066, 1196, 1495, 1706, 1886, 2132, 2665, 2990, 3412, 3772, 4265, 4715, 5330, 5980, 8530, 9430, 10660, 11089, 12259, 17060, 18860, 19619, 22178, 24518, 34973, 39238, 44356, 49036, 55445, 61295, 69946, 78476, 98095, 110890, 122590, 139892, 174865, 196190, 221780, 245180, 255047, 349730, 392380, 454649, 510094, 699460, 804379, 909298, 1020188, 1275235, 1608758, 1818596, 2273245, 2550470, 3217516, 4021895, 4546490, 5100940, 8043790, 9092980, 10456927, 16087580, 20913854, 41827708, 52284635, 104569270, 209138540]

約数ペア:

[(1, 209138540), (2, 104569270), (4, 52284635), (5, 41827708), (10, 20913854), (13, 16087580), (20, 10456927), (23, 9092980), (26, 8043790), (41, 5100940), (46, 4546490), (52, 4021895), (65, 3217516), (82, 2550470), (92, 2273245), (115, 1818596), (130, 1608758), (164, 1275235), (205, 1020188), (230, 909298), (260, 804379), (299, 699460), (410, 510094), (460, 454649), (533, 392380), (598, 349730), (820, 255047), (853, 245180), (943, 221780), (1066, 196190), (1196, 174865), (1495, 139892), (1706, 122590), (1886, 110890), (2132, 98095), (2665, 78476), (2990, 69946), (3412, 61295), (3772, 55445), (4265, 49036), (4715, 44356), (5330, 39238), (5980, 34973), (8530, 24518), (9430, 22178), (10660, 19619), (11089, 18860), (12259, 17060)]