28106320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 76914720

約数和(自身を除く): 48808400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 41, 44, 55, 76, 80, 82, 88, 95, 110, 152, 164, 176, 190, 205, 209, 220, 304, 328, 380, 410, 418, 440, 451, 656, 760, 779, 820, 836, 880, 902, 1045, 1520, 1558, 1640, 1672, 1681, 1804, 2090, 2255, 3116, 3280, 3344, 3362, 3608, 3895, 4180, 4510, 6232, 6724, 7216, 7790, 8360, 8405, 8569, 9020, 12464, 13448, 15580, 16720, 16810, 17138, 18040, 18491, 26896, 31160, 31939, 33620, 34276, 36080, 36982, 42845, 62320, 63878, 67240, 68552, 73964, 85690, 92455, 127756, 134480, 137104, 147928, 159695, 171380, 184910, 255512, 295856, 319390, 342760, 351329, 369820, 511024, 638780, 685520, 702658, 739640, 1277560, 1405316, 1479280, 1756645, 2555120, 2810632, 3513290, 5621264, 7026580, 14053160, 28106320]

約数ペア:

[(1, 28106320), (2, 14053160), (4, 7026580), (5, 5621264), (8, 3513290), (10, 2810632), (11, 2555120), (16, 1756645), (19, 1479280), (20, 1405316), (22, 1277560), (38, 739640), (40, 702658), (41, 685520), (44, 638780), (55, 511024), (76, 369820), (80, 351329), (82, 342760), (88, 319390), (95, 295856), (110, 255512), (152, 184910), (164, 171380), (176, 159695), (190, 147928), (205, 137104), (209, 134480), (220, 127756), (304, 92455), (328, 85690), (380, 73964), (410, 68552), (418, 67240), (440, 63878), (451, 62320), (656, 42845), (760, 36982), (779, 36080), (820, 34276), (836, 33620), (880, 31939), (902, 31160), (1045, 26896), (1520, 18491), (1558, 18040), (1640, 17138), (1672, 16810), (1681, 16720), (1804, 15580), (2090, 13448), (2255, 12464), (3116, 9020), (3280, 8569), (3344, 8405), (3362, 8360), (3608, 7790), (3895, 7216), (4180, 6724), (4510, 6232)]