398834920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 1011709440

約数和(自身を除く): 612874520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 67, 83, 88, 110, 134, 163, 166, 220, 268, 326, 332, 335, 415, 440, 536, 652, 664, 670, 737, 815, 830, 913, 1304, 1340, 1474, 1630, 1660, 1793, 1826, 2680, 2948, 3260, 3320, 3586, 3652, 3685, 4565, 5561, 5896, 6520, 7172, 7304, 7370, 8965, 9130, 10921, 11122, 13529, 14344, 14740, 17930, 18260, 21842, 22244, 27058, 27805, 29480, 35860, 36520, 43684, 44488, 54116, 54605, 55610, 61171, 67645, 71720, 87368, 108232, 109210, 111220, 120131, 122342, 135290, 148819, 218420, 222440, 240262, 244684, 270580, 297638, 305855, 436840, 480524, 489368, 541160, 595276, 600655, 611710, 744095, 906443, 961048, 1190552, 1201310, 1223420, 1488190, 1812886, 2402620, 2446840, 2976380, 3625772, 4532215, 4805240, 5952760, 7251544, 9064430, 9970873, 18128860, 19941746, 36257720, 39883492, 49854365, 79766984, 99708730, 199417460, 398834920]

約数ペア:

[(1, 398834920), (2, 199417460), (4, 99708730), (5, 79766984), (8, 49854365), (10, 39883492), (11, 36257720), (20, 19941746), (22, 18128860), (40, 9970873), (44, 9064430), (55, 7251544), (67, 5952760), (83, 4805240), (88, 4532215), (110, 3625772), (134, 2976380), (163, 2446840), (166, 2402620), (220, 1812886), (268, 1488190), (326, 1223420), (332, 1201310), (335, 1190552), (415, 961048), (440, 906443), (536, 744095), (652, 611710), (664, 600655), (670, 595276), (737, 541160), (815, 489368), (830, 480524), (913, 436840), (1304, 305855), (1340, 297638), (1474, 270580), (1630, 244684), (1660, 240262), (1793, 222440), (1826, 218420), (2680, 148819), (2948, 135290), (3260, 122342), (3320, 120131), (3586, 111220), (3652, 109210), (3685, 108232), (4565, 87368), (5561, 71720), (5896, 67645), (6520, 61171), (7172, 55610), (7304, 54605), (7370, 54116), (8965, 44488), (9130, 43684), (10921, 36520), (11122, 35860), (13529, 29480), (14344, 27805), (14740, 27058), (17930, 22244), (18260, 21842)]