400186008

素因数分解:

$2^3\times 3^7\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 1142424000

約数和(自身を除く): 742237992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 89, 108, 162, 178, 216, 243, 257, 267, 324, 356, 486, 514, 534, 648, 712, 729, 771, 801, 972, 1028, 1068, 1458, 1542, 1602, 1944, 2056, 2136, 2187, 2313, 2403, 2916, 3084, 3204, 4374, 4626, 4806, 5832, 6168, 6408, 6939, 7209, 8748, 9252, 9612, 13878, 14418, 17496, 18504, 19224, 20817, 21627, 22873, 27756, 28836, 41634, 43254, 45746, 55512, 57672, 62451, 64881, 68619, 83268, 86508, 91492, 124902, 129762, 137238, 166536, 173016, 182984, 187353, 194643, 205857, 249804, 259524, 274476, 374706, 389286, 411714, 499608, 519048, 548952, 562059, 617571, 749412, 778572, 823428, 1124118, 1235142, 1498824, 1557144, 1646856, 1852713, 2248236, 2470284, 3705426, 4496472, 4940568, 5558139, 7410852, 11116278, 14821704, 16674417, 22232556, 33348834, 44465112, 50023251, 66697668, 100046502, 133395336, 200093004, 400186008]

約数ペア:

[(1, 400186008), (2, 200093004), (3, 133395336), (4, 100046502), (6, 66697668), (8, 50023251), (9, 44465112), (12, 33348834), (18, 22232556), (24, 16674417), (27, 14821704), (36, 11116278), (54, 7410852), (72, 5558139), (81, 4940568), (89, 4496472), (108, 3705426), (162, 2470284), (178, 2248236), (216, 1852713), (243, 1646856), (257, 1557144), (267, 1498824), (324, 1235142), (356, 1124118), (486, 823428), (514, 778572), (534, 749412), (648, 617571), (712, 562059), (729, 548952), (771, 519048), (801, 499608), (972, 411714), (1028, 389286), (1068, 374706), (1458, 274476), (1542, 259524), (1602, 249804), (1944, 205857), (2056, 194643), (2136, 187353), (2187, 182984), (2313, 173016), (2403, 166536), (2916, 137238), (3084, 129762), (3204, 124902), (4374, 91492), (4626, 86508), (4806, 83268), (5832, 68619), (6168, 64881), (6408, 62451), (6939, 57672), (7209, 55512), (8748, 45746), (9252, 43254), (9612, 41634), (13878, 28836), (14418, 27756), (17496, 22873), (18504, 21627), (19224, 20817)]