42828280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 114048000

約数和(自身を除く): 71219720

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 47, 55, 76, 88, 94, 95, 109, 110, 152, 188, 190, 209, 218, 220, 235, 376, 380, 418, 436, 440, 470, 517, 545, 760, 836, 872, 893, 940, 1034, 1045, 1090, 1199, 1672, 1786, 1880, 2068, 2071, 2090, 2180, 2398, 2585, 3572, 4136, 4142, 4180, 4360, 4465, 4796, 5123, 5170, 5995, 7144, 8284, 8360, 8930, 9592, 9823, 10246, 10340, 10355, 11990, 16568, 17860, 19646, 20492, 20680, 20710, 22781, 23980, 25615, 35720, 39292, 40984, 41420, 45562, 47960, 49115, 51230, 56353, 78584, 82840, 91124, 97337, 98230, 102460, 112706, 113905, 182248, 194674, 196460, 204920, 225412, 227810, 281765, 389348, 392920, 450824, 455620, 486685, 563530, 778696, 911240, 973370, 1070707, 1127060, 1946740, 2141414, 2254120, 3893480, 4282828, 5353535, 8565656, 10707070, 21414140, 42828280]

約数ペア:

[(1, 42828280), (2, 21414140), (4, 10707070), (5, 8565656), (8, 5353535), (10, 4282828), (11, 3893480), (19, 2254120), (20, 2141414), (22, 1946740), (38, 1127060), (40, 1070707), (44, 973370), (47, 911240), (55, 778696), (76, 563530), (88, 486685), (94, 455620), (95, 450824), (109, 392920), (110, 389348), (152, 281765), (188, 227810), (190, 225412), (209, 204920), (218, 196460), (220, 194674), (235, 182248), (376, 113905), (380, 112706), (418, 102460), (436, 98230), (440, 97337), (470, 91124), (517, 82840), (545, 78584), (760, 56353), (836, 51230), (872, 49115), (893, 47960), (940, 45562), (1034, 41420), (1045, 40984), (1090, 39292), (1199, 35720), (1672, 25615), (1786, 23980), (1880, 22781), (2068, 20710), (2071, 20680), (2090, 20492), (2180, 19646), (2398, 17860), (2585, 16568), (3572, 11990), (4136, 10355), (4142, 10340), (4180, 10246), (4360, 9823), (4465, 9592), (4796, 8930), (5123, 8360), (5170, 8284), (5995, 7144)]