142638320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{449}}^1$

素因数の和:511

約数の個数: 120

約数和(自身を含む): 382676400

約数和(自身を除く): 240038080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 361, 380, 418, 440, 449, 722, 760, 836, 880, 898, 1045, 1444, 1520, 1672, 1796, 1805, 2090, 2245, 2888, 3344, 3592, 3610, 3971, 4180, 4490, 4939, 5776, 7184, 7220, 7942, 8360, 8531, 8980, 9878, 14440, 15884, 16720, 17062, 17960, 19756, 19855, 24695, 28880, 31768, 34124, 35920, 39512, 39710, 42655, 49390, 63536, 68248, 79024, 79420, 85310, 93841, 98780, 136496, 158840, 162089, 170620, 187682, 197560, 317680, 324178, 341240, 375364, 395120, 469205, 648356, 682480, 750728, 810445, 938410, 1296712, 1501456, 1620890, 1782979, 1876820, 2593424, 3241780, 3565958, 3753640, 6483560, 7131916, 7507280, 8914895, 12967120, 14263832, 17829790, 28527664, 35659580, 71319160, 142638320]

約数ペア:

[(1, 142638320), (2, 71319160), (4, 35659580), (5, 28527664), (8, 17829790), (10, 14263832), (11, 12967120), (16, 8914895), (19, 7507280), (20, 7131916), (22, 6483560), (38, 3753640), (40, 3565958), (44, 3241780), (55, 2593424), (76, 1876820), (80, 1782979), (88, 1620890), (95, 1501456), (110, 1296712), (152, 938410), (176, 810445), (190, 750728), (209, 682480), (220, 648356), (304, 469205), (361, 395120), (380, 375364), (418, 341240), (440, 324178), (449, 317680), (722, 197560), (760, 187682), (836, 170620), (880, 162089), (898, 158840), (1045, 136496), (1444, 98780), (1520, 93841), (1672, 85310), (1796, 79420), (1805, 79024), (2090, 68248), (2245, 63536), (2888, 49390), (3344, 42655), (3592, 39710), (3610, 39512), (3971, 35920), (4180, 34124), (4490, 31768), (4939, 28880), (5776, 24695), (7184, 19855), (7220, 19756), (7942, 17960), (8360, 17062), (8531, 16720), (8980, 15884), (9878, 14440)]