247445380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1721}}^1$

素因数の和:1829

約数の個数: 96

約数和(自身を含む): 648023040

約数和(自身を除く): 400577660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 79, 91, 130, 140, 158, 182, 260, 316, 364, 395, 455, 553, 790, 910, 1027, 1106, 1580, 1721, 1820, 2054, 2212, 2765, 3442, 4108, 5135, 5530, 6884, 7189, 8605, 10270, 11060, 12047, 14378, 17210, 20540, 22373, 24094, 28756, 34420, 35945, 44746, 48188, 60235, 71890, 89492, 111865, 120470, 135959, 143780, 156611, 223730, 240940, 271918, 313222, 447460, 543836, 626444, 679795, 783055, 951713, 1359590, 1566110, 1767467, 1903426, 2719180, 3132220, 3534934, 3806852, 4758565, 7069868, 8837335, 9517130, 12372269, 17674670, 19034260, 24744538, 35349340, 49489076, 61861345, 123722690, 247445380]

約数ペア:

[(1, 247445380), (2, 123722690), (4, 61861345), (5, 49489076), (7, 35349340), (10, 24744538), (13, 19034260), (14, 17674670), (20, 12372269), (26, 9517130), (28, 8837335), (35, 7069868), (52, 4758565), (65, 3806852), (70, 3534934), (79, 3132220), (91, 2719180), (130, 1903426), (140, 1767467), (158, 1566110), (182, 1359590), (260, 951713), (316, 783055), (364, 679795), (395, 626444), (455, 543836), (553, 447460), (790, 313222), (910, 271918), (1027, 240940), (1106, 223730), (1580, 156611), (1721, 143780), (1820, 135959), (2054, 120470), (2212, 111865), (2765, 89492), (3442, 71890), (4108, 60235), (5135, 48188), (5530, 44746), (6884, 35945), (7189, 34420), (8605, 28756), (10270, 24094), (11060, 22373), (12047, 20540), (14378, 17210)]