251297904

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1247

約数の個数: 160

約数和(自身を含む): 787949568

約数和(自身を除く): 536651664

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 22, 24, 26, 31, 33, 39, 44, 48, 52, 62, 66, 78, 88, 93, 104, 124, 132, 143, 156, 176, 186, 208, 248, 264, 286, 312, 341, 372, 403, 429, 496, 528, 572, 624, 682, 744, 806, 858, 1023, 1144, 1181, 1209, 1364, 1488, 1612, 1716, 2046, 2288, 2362, 2418, 2728, 3224, 3432, 3543, 4092, 4433, 4724, 4836, 5456, 6448, 6864, 7086, 8184, 8866, 9448, 9672, 12991, 13299, 14172, 15353, 16368, 17732, 18896, 19344, 25982, 26598, 28344, 30706, 35464, 36611, 38973, 46059, 51964, 53196, 56688, 61412, 70928, 73222, 77946, 92118, 103928, 106392, 109833, 122824, 146444, 155892, 168883, 184236, 207856, 212784, 219666, 245648, 292888, 311784, 337766, 368472, 402721, 439332, 475943, 506649, 585776, 623568, 675532, 736944, 805442, 878664, 951886, 1013298, 1208163, 1351064, 1427829, 1610884, 1757328, 1903772, 2026596, 2416326, 2702128, 2855658, 3221768, 3807544, 4053192, 4832652, 5235373, 5711316, 6443536, 7615088, 8106384, 9665304, 10470746, 11422632, 15706119, 19330608, 20941492, 22845264, 31412238, 41882984, 62824476, 83765968, 125648952, 251297904]

約数ペア:

[(1, 251297904), (2, 125648952), (3, 83765968), (4, 62824476), (6, 41882984), (8, 31412238), (11, 22845264), (12, 20941492), (13, 19330608), (16, 15706119), (22, 11422632), (24, 10470746), (26, 9665304), (31, 8106384), (33, 7615088), (39, 6443536), (44, 5711316), (48, 5235373), (52, 4832652), (62, 4053192), (66, 3807544), (78, 3221768), (88, 2855658), (93, 2702128), (104, 2416326), (124, 2026596), (132, 1903772), (143, 1757328), (156, 1610884), (176, 1427829), (186, 1351064), (208, 1208163), (248, 1013298), (264, 951886), (286, 878664), (312, 805442), (341, 736944), (372, 675532), (403, 623568), (429, 585776), (496, 506649), (528, 475943), (572, 439332), (624, 402721), (682, 368472), (744, 337766), (806, 311784), (858, 292888), (1023, 245648), (1144, 219666), (1181, 212784), (1209, 207856), (1364, 184236), (1488, 168883), (1612, 155892), (1716, 146444), (2046, 122824), (2288, 109833), (2362, 106392), (2418, 103928), (2728, 92118), (3224, 77946), (3432, 73222), (3543, 70928), (4092, 61412), (4433, 56688), (4724, 53196), (4836, 51964), (5456, 46059), (6448, 38973), (6864, 36611), (7086, 35464), (8184, 30706), (8866, 28344), (9448, 26598), (9672, 25982), (12991, 19344), (13299, 18896), (14172, 17732), (15353, 16368)]