64805720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:417

約数の個数: 128

約数和(自身を含む): 180403200

約数和(自身を除く): 115597480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 115, 116, 140, 145, 161, 184, 203, 230, 232, 280, 290, 322, 347, 406, 460, 580, 644, 667, 694, 805, 812, 920, 1015, 1160, 1288, 1334, 1388, 1610, 1624, 1735, 2030, 2429, 2668, 2776, 3220, 3335, 3470, 4060, 4669, 4858, 5336, 6440, 6670, 6940, 7981, 8120, 9338, 9716, 10063, 12145, 13340, 13880, 15962, 18676, 19432, 20126, 23345, 24290, 26680, 31924, 37352, 39905, 40252, 46690, 48580, 50315, 55867, 63848, 70441, 79810, 80504, 93380, 97160, 100630, 111734, 140882, 159620, 186760, 201260, 223468, 231449, 279335, 281764, 319240, 352205, 402520, 446936, 462898, 558670, 563528, 704410, 925796, 1117340, 1157245, 1408820, 1620143, 1851592, 2234680, 2314490, 2817640, 3240286, 4628980, 6480572, 8100715, 9257960, 12961144, 16201430, 32402860, 64805720]

約数ペア:

[(1, 64805720), (2, 32402860), (4, 16201430), (5, 12961144), (7, 9257960), (8, 8100715), (10, 6480572), (14, 4628980), (20, 3240286), (23, 2817640), (28, 2314490), (29, 2234680), (35, 1851592), (40, 1620143), (46, 1408820), (56, 1157245), (58, 1117340), (70, 925796), (92, 704410), (115, 563528), (116, 558670), (140, 462898), (145, 446936), (161, 402520), (184, 352205), (203, 319240), (230, 281764), (232, 279335), (280, 231449), (290, 223468), (322, 201260), (347, 186760), (406, 159620), (460, 140882), (580, 111734), (644, 100630), (667, 97160), (694, 93380), (805, 80504), (812, 79810), (920, 70441), (1015, 63848), (1160, 55867), (1288, 50315), (1334, 48580), (1388, 46690), (1610, 40252), (1624, 39905), (1735, 37352), (2030, 31924), (2429, 26680), (2668, 24290), (2776, 23345), (3220, 20126), (3335, 19432), (3470, 18676), (4060, 15962), (4669, 13880), (4858, 13340), (5336, 12145), (6440, 10063), (6670, 9716), (6940, 9338), (7981, 8120)]