71296940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 178403904

約数和(自身を除く): 107106964

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 97, 110, 130, 143, 194, 220, 257, 260, 286, 388, 485, 514, 572, 715, 970, 1028, 1067, 1261, 1285, 1430, 1940, 2134, 2522, 2570, 2827, 2860, 3341, 4268, 5044, 5140, 5335, 5654, 6305, 6682, 10670, 11308, 12610, 13364, 13871, 14135, 16705, 21340, 24929, 25220, 27742, 28270, 33410, 36751, 49858, 55484, 56540, 66820, 69355, 73502, 99716, 124645, 138710, 147004, 183755, 249290, 274219, 277420, 324077, 367510, 498580, 548438, 648154, 735020, 1096876, 1296308, 1371095, 1620385, 2742190, 3240770, 3564847, 5484380, 6481540, 7129694, 14259388, 17824235, 35648470, 71296940]

約数ペア:

[(1, 71296940), (2, 35648470), (4, 17824235), (5, 14259388), (10, 7129694), (11, 6481540), (13, 5484380), (20, 3564847), (22, 3240770), (26, 2742190), (44, 1620385), (52, 1371095), (55, 1296308), (65, 1096876), (97, 735020), (110, 648154), (130, 548438), (143, 498580), (194, 367510), (220, 324077), (257, 277420), (260, 274219), (286, 249290), (388, 183755), (485, 147004), (514, 138710), (572, 124645), (715, 99716), (970, 73502), (1028, 69355), (1067, 66820), (1261, 56540), (1285, 55484), (1430, 49858), (1940, 36751), (2134, 33410), (2522, 28270), (2570, 27742), (2827, 25220), (2860, 24929), (3341, 21340), (4268, 16705), (5044, 14135), (5140, 13871), (5335, 13364), (5654, 12610), (6305, 11308), (6682, 10670)]