20159316

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 53936064

約数和(自身を除く): 33776748

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 97, 138, 194, 207, 251, 276, 291, 388, 414, 502, 582, 753, 828, 873, 1004, 1164, 1506, 1746, 2231, 2259, 3012, 3492, 4462, 4518, 5773, 6693, 8924, 9036, 11546, 13386, 17319, 20079, 23092, 24347, 26772, 34638, 40158, 48694, 51957, 69276, 73041, 80316, 97388, 103914, 146082, 207828, 219123, 292164, 438246, 559981, 876492, 1119962, 1679943, 2239924, 3359886, 5039829, 6719772, 10079658, 20159316]

約数ペア:

[(1, 20159316), (2, 10079658), (3, 6719772), (4, 5039829), (6, 3359886), (9, 2239924), (12, 1679943), (18, 1119962), (23, 876492), (36, 559981), (46, 438246), (69, 292164), (92, 219123), (97, 207828), (138, 146082), (194, 103914), (207, 97388), (251, 80316), (276, 73041), (291, 69276), (388, 51957), (414, 48694), (502, 40158), (582, 34638), (753, 26772), (828, 24347), (873, 23092), (1004, 20079), (1164, 17319), (1506, 13386), (1746, 11546), (2231, 9036), (2259, 8924), (3012, 6693), (3492, 5773), (4462, 4518)]