254978412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{2131}}^1$

素因数の和:2223

約数の個数: 72

約数和(自身を含む): 655462080

約数和(自身を除く): 400483668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 59, 78, 118, 156, 169, 177, 236, 338, 354, 507, 676, 708, 767, 1014, 1534, 2028, 2131, 2301, 3068, 4262, 4602, 6393, 8524, 9204, 9971, 12786, 19942, 25572, 27703, 29913, 39884, 55406, 59826, 83109, 110812, 119652, 125729, 166218, 251458, 332436, 360139, 377187, 502916, 720278, 754374, 1080417, 1440556, 1508748, 1634477, 2160834, 3268954, 4321668, 4903431, 6537908, 9806862, 19613724, 21248201, 42496402, 63744603, 84992804, 127489206, 254978412]

約数ペア:

[(1, 254978412), (2, 127489206), (3, 84992804), (4, 63744603), (6, 42496402), (12, 21248201), (13, 19613724), (26, 9806862), (39, 6537908), (52, 4903431), (59, 4321668), (78, 3268954), (118, 2160834), (156, 1634477), (169, 1508748), (177, 1440556), (236, 1080417), (338, 754374), (354, 720278), (507, 502916), (676, 377187), (708, 360139), (767, 332436), (1014, 251458), (1534, 166218), (2028, 125729), (2131, 119652), (2301, 110812), (3068, 83109), (4262, 59826), (4602, 55406), (6393, 39884), (8524, 29913), (9204, 27703), (9971, 25572), (12786, 19942)]