1988755840

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3989}}^1$

素因数の和:4068

約数の個数: 128

約数和(自身を含む): 5127948000

約数和(自身を除く): 3139192160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 64, 76, 80, 82, 95, 128, 152, 160, 164, 190, 205, 304, 320, 328, 380, 410, 608, 640, 656, 760, 779, 820, 1216, 1312, 1520, 1558, 1640, 2432, 2624, 3040, 3116, 3280, 3895, 3989, 5248, 6080, 6232, 6560, 7790, 7978, 12160, 12464, 13120, 15580, 15956, 19945, 24928, 26240, 31160, 31912, 39890, 49856, 62320, 63824, 75791, 79780, 99712, 124640, 127648, 151582, 159560, 163549, 249280, 255296, 303164, 319120, 327098, 378955, 498560, 510592, 606328, 638240, 654196, 757910, 817745, 1212656, 1276480, 1308392, 1515820, 1635490, 2425312, 2552960, 2616784, 3031640, 3107431, 3270980, 4850624, 5233568, 6063280, 6214862, 6541960, 9701248, 10467136, 12126560, 12429724, 13083920, 15537155, 20934272, 24253120, 24859448, 26167840, 31074310, 48506240, 49718896, 52335680, 62148620, 99437792, 104671360, 124297240, 198875584, 248594480, 397751168, 497188960, 994377920, 1988755840]

約数ペア:

[(1, 1988755840), (2, 994377920), (4, 497188960), (5, 397751168), (8, 248594480), (10, 198875584), (16, 124297240), (19, 104671360), (20, 99437792), (32, 62148620), (38, 52335680), (40, 49718896), (41, 48506240), (64, 31074310), (76, 26167840), (80, 24859448), (82, 24253120), (95, 20934272), (128, 15537155), (152, 13083920), (160, 12429724), (164, 12126560), (190, 10467136), (205, 9701248), (304, 6541960), (320, 6214862), (328, 6063280), (380, 5233568), (410, 4850624), (608, 3270980), (640, 3107431), (656, 3031640), (760, 2616784), (779, 2552960), (820, 2425312), (1216, 1635490), (1312, 1515820), (1520, 1308392), (1558, 1276480), (1640, 1212656), (2432, 817745), (2624, 757910), (3040, 654196), (3116, 638240), (3280, 606328), (3895, 510592), (3989, 498560), (5248, 378955), (6080, 327098), (6232, 319120), (6560, 303164), (7790, 255296), (7978, 249280), (12160, 163549), (12464, 159560), (13120, 151582), (15580, 127648), (15956, 124640), (19945, 99712), (24928, 79780), (26240, 75791), (31160, 63824), (31912, 62320), (39890, 49856)]